Bluetooth monitor ver 5.53
= Note: Linux version 5.4.0-33-generic (x86_64)                        0.144848
= Note: Bluetooth subsystem version 2.22                               0.144851
= New Index: 18:CF:5E:0F:06:FB (Primary,USB,hci0)               [hci0] 0.144852
= Open Index: 18:CF:5E:0F:06:FB                                 [hci0] 0.144852
= Index Info: 18:CF:5E:0F:06:FB (Atheros Communications, Inc.)  [hci0] 0.144854
@ MGMT Open: btmon (privileged) version 1.14                  {0x0002} 0.144855
@ MGMT Open: bluetoothd (privileged) version 1.14             {0x0001} 0.144856
@ MGMT Open: btmon (privileged) version 1.14                  {0x0003} 0.144869
> HCI Event: Vendor (0xff) plen 2                           #1 [hci0] 38.801330
        81 00                                            ..              
> HCI Event: Connect Request (0x04) plen 10                 #2 [hci0] 38.802310
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
        Link type: ACL (0x01)
< HCI Command: Accept Connection Re.. (0x01|0x0009) plen 7  #3 [hci0] 38.802400
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Role: Master (0x00)
> HCI Event: Command Status (0x0f) plen 4                   #4 [hci0] 38.803301
      Accept Connection Request (0x01|0x0009) ncmd 1
        Status: Success (0x00)
> HCI Event: Role Change (0x12) plen 8                      #5 [hci0] 38.956378
        Status: Success (0x00)
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Role: Master (0x00)
> HCI Event: Vendor (0xff) plen 2                           #6 [hci0] 39.010370
        81 01                                            ..              
> HCI Event: Vendor (0xff) plen 7                           #7 [hci0] 39.011372
        82 00 00 00 01 15 00                             .......         
> HCI Event: Connect Complete (0x03) plen 11                #8 [hci0] 39.012375
        Status: Success (0x00)
        Handle: 21
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Link type: ACL (0x01)
        Encryption: Disabled (0x00)
< HCI Command: Read Remote Supporte.. (0x01|0x001b) plen 2  #9 [hci0] 39.012778
        Handle: 21
> HCI Event: Command Status (0x0f) plen 4                  #10 [hci0] 39.014310
      Read Remote Supported Features (0x01|0x001b) ncmd 1
        Status: Success (0x00)
< HCI Command: Write Scan Enable (0x03|0x001a) plen 1      #11 [hci0] 39.014377
        Scan enable: No Scans (0x00)
> HCI Event: Command Complete (0x0e) plen 4                #12 [hci0] 39.015310
      Write Scan Enable (0x03|0x001a) ncmd 1
        Status: Success (0x00)
> HCI Event: Read Remote Supported Featu.. (0x0b) plen 11  #13 [hci0] 39.017335
        Status: Success (0x00)
        Handle: 21
        Features: 0xbf 0x3e 0x8d 0xfe 0xdb 0xff 0x5b 0x87
          3 slot packets
          5 slot packets
          Encryption
          Slot offset
          Timing accuracy
          Role switch
          Sniff mode
          Power control requests
          Channel quality driven data rate (CQDDR)
          SCO link
          HV2 packets
          HV3 packets
          CVSD synchronous data
          Power control
          Transparent synchronous data
          Broadcast Encryption
          Enhanced Data Rate ACL 2 Mbps mode
          Enhanced Data Rate ACL 3 Mbps mode
          Enhanced inquiry scan
          Interlaced inquiry scan
          Interlaced page scan
          RSSI with inquiry results
          Extended SCO link (EV3 packets)
          EV4 packets
          EV5 packets
          AFH capable slave
          AFH classification slave
          LE Supported (Controller)
          3-slot Enhanced Data Rate ACL packets
          5-slot Enhanced Data Rate ACL packets
          Sniff subrating
          Pause encryption
          AFH capable master
          AFH classification master
          Enhanced Data Rate eSCO 2 Mbps mode
          Enhanced Data Rate eSCO 3 Mbps mode
          3-slot Enhanced Data Rate eSCO packets
          Extended Inquiry Response
          Simultaneous LE and BR/EDR (Controller)
          Secure Simple Pairing
          Encapsulated PDU
          Non-flushable Packet Boundary Flag
          Link Supervision Timeout Changed Event
          Inquiry TX Power Level
          Enhanced Power Control
          Extended features
< HCI Command: Read Remote Extende.. (0x01|0x001c) plen 3  #14 [hci0] 39.017402
        Handle: 21
        Page: 1
> HCI Event: Command Status (0x0f) plen 4                  #15 [hci0] 39.018299
      Read Remote Extended Features (0x01|0x001c) ncmd 1
        Status: Success (0x00)
> HCI Event: Read Remote Extended Features (0x23) plen 13  #16 [hci0] 39.021337
        Status: Success (0x00)
        Handle: 21
        Page: 1/2
        Features: 0x07 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          Secure Simple Pairing (Host Support)
          LE Supported (Host)
          Simultaneous LE and BR/EDR (Host)
< HCI Command: Remote Name Request (0x01|0x0019) plen 10   #17 [hci0] 39.021433
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Page scan repetition mode: R2 (0x02)
        Page scan mode: Mandatory (0x00)
        Clock offset: 0x0000
< ACL Data TX: Handle 21 flags 0x00 dlen 10                #18 [hci0] 39.021448
      L2CAP: Information Request (0x0a) ident 1 len 2
        Type: Extended features supported (0x0002)
> HCI Event: Vendor (0xff) plen 2                          #19 [hci0] 39.022291
        81 00                                            ..              
> ACL Data RX: Handle 21 flags 0x02 dlen 10                #20 [hci0] 39.022568
      L2CAP: Information Request (0x0a) ident 2 len 2
        Type: Extended features supported (0x0002)
< ACL Data TX: Handle 21 flags 0x00 dlen 16                #21 [hci0] 39.022588
      L2CAP: Information Response (0x0b) ident 2 len 8
        Type: Extended features supported (0x0002)
        Result: Success (0x0000)
        Features: 0x000002b8
          Enhanced Retransmission Mode
          Streaming Mode
          FCS Option
          Fixed Channels
          Unicast Connectionless Data Reception
> HCI Event: Command Status (0x0f) plen 4                  #22 [hci0] 39.023293
      Remote Name Request (0x01|0x0019) ncmd 1
        Status: Success (0x00)
> HCI Event: Number of Completed Packets (0x13) plen 5     #23 [hci0] 39.025294
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Vendor (0xff) plen 2                          #24 [hci0] 39.026289
        81 01                                            ..              
> ACL Data RX: Handle 21 flags 0x02 dlen 16                #25 [hci0] 39.034373
      L2CAP: Information Response (0x0b) ident 1 len 8
        Type: Extended features supported (0x0002)
        Result: Success (0x0000)
        Features: 0x000000b8
          Enhanced Retransmission Mode
          Streaming Mode
          FCS Option
          Fixed Channels
< ACL Data TX: Handle 21 flags 0x00 dlen 10                #26 [hci0] 39.034463
      L2CAP: Information Request (0x0a) ident 2 len 2
        Type: Fixed channels supported (0x0003)
> ACL Data RX: Handle 21 flags 0x02 dlen 10                #27 [hci0] 39.035502
      L2CAP: Information Request (0x0a) ident 3 len 2
        Type: Fixed channels supported (0x0003)
< ACL Data TX: Handle 21 flags 0x00 dlen 20                #28 [hci0] 39.035541
      L2CAP: Information Response (0x0b) ident 3 len 12
        Type: Fixed channels supported (0x0003)
        Result: Success (0x0000)
        Channels: 0x0000000000000006
          L2CAP Signaling (BR/EDR)
          Connectionless reception
> ACL Data RX: Handle 21 flags 0x02 dlen 20                #29 [hci0] 39.040513
      L2CAP: Information Response (0x0b) ident 2 len 12
        Type: Fixed channels supported (0x0003)
        Result: Success (0x0000)
        Channels: 0x00000000000000d2
          L2CAP Signaling (BR/EDR)
          Attribute Protocol
          Security Manager (LE)
          Security Manager (BR/EDR)
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #30 [hci0] 39.041751
      L2CAP: Connection Request (0x02) ident 4 len 4
        PSM: 1 (0x0001)
        Source CID: 64
@ MGMT Event: Device Connected (0x000b) plen 18       {0x0003} [hci0] 39.041833
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Flags: 0x00000000
        Data length: 5
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
@ MGMT Event: Device Connected (0x000b) plen 18       {0x0002} [hci0] 39.041833
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Flags: 0x00000000
        Data length: 5
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
@ MGMT Event: Device Connected (0x000b) plen 18       {0x0001} [hci0] 39.041833
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Flags: 0x00000000
        Data length: 5
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
< ACL Data TX: Handle 21 flags 0x00 dlen 16                #31 [hci0] 39.041880
      L2CAP: Connection Response (0x03) ident 4 len 8
        Destination CID: 64
        Source CID: 64
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23                #32 [hci0] 39.041890
      L2CAP: Configure Request (0x04) ident 3 len 15
        Destination CID: 64
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Remote Name Req Complete (0x07) plen 255      #33 [hci0] 39.043291
        Status: Success (0x00)
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Name: VIVO
> HCI Event: Number of Completed Packets (0x13) plen 5     #34 [hci0] 39.044299
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #35 [hci0] 39.045298
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #36 [hci0] 39.046301
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #37 [hci0] 39.110376
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #38 [hci0] 39.112381
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16                #39 [hci0] 39.113029
      L2CAP: Configure Request (0x04) ident 5 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18                #40 [hci0] 39.113086
      L2CAP: Configure Response (0x05) ident 5 len 10
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> ACL Data RX: Handle 21 flags 0x02 dlen 14                #41 [hci0] 39.114234
      L2CAP: Configure Response (0x05) ident 3 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5     #42 [hci0] 39.115342
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 31                #43 [hci0] 39.118043
      Channel: 64 len 27 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Request (0x06) tid 0 len 22
        Search pattern: [len 5]
          Sequence (6) with 3 bytes [8 extra bits] len 5
            UUID (3) with 2 bytes [0 extra bits] len 3
              Handsfree (0x111e)
        Max record count: 656
        Attribute list: [len 14]
          Sequence (6) with 12 bytes [8 extra bits] len 14
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0311
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14                #44 [hci0] 39.118684
      Channel: 64 len 10 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5     #45 [hci0] 39.120298
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #46 [hci0] 39.121792
      L2CAP: Disconnection Request (0x06) ident 6 len 4
        Destination CID: 64
        Source CID: 64
< ACL Data TX: Handle 21 flags 0x00 dlen 12                #47 [hci0] 39.121933
      L2CAP: Disconnection Response (0x07) ident 6 len 4
        Destination CID: 64
        Source CID: 64
> HCI Event: Number of Completed Packets (0x13) plen 5     #48 [hci0] 39.124317
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #49 [hci0] 39.160551
      L2CAP: Connection Request (0x02) ident 7 len 4
        PSM: 1 (0x0001)
        Source CID: 65
< ACL Data TX: Handle 21 flags 0x00 dlen 16                #50 [hci0] 39.160691
      L2CAP: Connection Response (0x03) ident 7 len 8
        Destination CID: 64
        Source CID: 65
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23                #51 [hci0] 39.160710
      L2CAP: Configure Request (0x04) ident 4 len 15
        Destination CID: 65
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5     #52 [hci0] 39.169302
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #53 [hci0] 39.170374
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16                #54 [hci0] 39.171875
      L2CAP: Configure Request (0x04) ident 8 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18                #55 [hci0] 39.171991
      L2CAP: Configure Response (0x05) ident 8 len 10
        Source CID: 65
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> ACL Data RX: Handle 21 flags 0x02 dlen 14                #56 [hci0] 39.173046
      L2CAP: Configure Response (0x05) ident 4 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5     #57 [hci0] 39.174319
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 34                #58 [hci0] 39.176724
      Channel: 64 len 30 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Request (0x06) tid 0 len 25
        Search pattern: [len 8]
          Sequence (6) with 6 bytes [8 extra bits] len 8
            UUID (3) with 2 bytes [0 extra bits] len 3
              Headset (0x1108)
            UUID (3) with 2 bytes [0 extra bits] len 3
              Headset HS (0x1131)
        Max record count: 656
        Attribute list: [len 14]
          Sequence (6) with 12 bytes [8 extra bits] len 14
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0302
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14                #59 [hci0] 39.176964
      Channel: 65 len 10 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5     #60 [hci0] 39.179335
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #61 [hci0] 39.180520
      L2CAP: Disconnection Request (0x06) ident 9 len 4
        Destination CID: 64
        Source CID: 65
< ACL Data TX: Handle 21 flags 0x00 dlen 12                #62 [hci0] 39.180610
      L2CAP: Disconnection Response (0x07) ident 9 len 4
        Destination CID: 64
        Source CID: 65
> HCI Event: Number of Completed Packets (0x13) plen 5     #63 [hci0] 39.183323
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #64 [hci0] 39.184252
      L2CAP: Connection Request (0x02) ident 10 len 4
        PSM: 1 (0x0001)
        Source CID: 66
< ACL Data TX: Handle 21 flags 0x00 dlen 16                #65 [hci0] 39.184331
      L2CAP: Connection Response (0x03) ident 10 len 8
        Destination CID: 64
        Source CID: 66
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23                #66 [hci0] 39.184342
      L2CAP: Configure Request (0x04) ident 5 len 15
        Destination CID: 66
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5     #67 [hci0] 39.187377
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16                #68 [hci0] 39.188029
      L2CAP: Configure Request (0x04) ident 11 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18                #69 [hci0] 39.188094
      L2CAP: Configure Response (0x05) ident 11 len 10
        Source CID: 66
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5     #70 [hci0] 39.188296
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 14                #71 [hci0] 39.189289
      L2CAP: Configure Response (0x05) ident 5 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5     #72 [hci0] 39.190329
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 31                #73 [hci0] 39.193031
      Channel: 64 len 27 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Request (0x06) tid 0 len 22
        Search pattern: [len 5]
          Sequence (6) with 3 bytes [8 extra bits] len 5
            UUID (3) with 2 bytes [0 extra bits] len 3
              Headset (0x1108)
        Max record count: 656
        Attribute list: [len 14]
          Sequence (6) with 12 bytes [8 extra bits] len 14
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0302
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14                #74 [hci0] 39.193331
      Channel: 66 len 10 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #75 [hci0] 39.221875
      L2CAP: Disconnection Request (0x06) ident 12 len 4
        Destination CID: 64
        Source CID: 66
< ACL Data TX: Handle 21 flags 0x00 dlen 12                #76 [hci0] 39.221997
      L2CAP: Disconnection Response (0x07) ident 12 len 4
        Destination CID: 64
        Source CID: 66
> HCI Event: Number of Completed Packets (0x13) plen 5     #77 [hci0] 39.222306
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #78 [hci0] 39.245374
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #79 [hci0] 39.275545
      L2CAP: Connection Request (0x02) ident 13 len 4
        PSM: 1 (0x0001)
        Source CID: 67
< ACL Data TX: Handle 21 flags 0x00 dlen 16                #80 [hci0] 39.275708
      L2CAP: Connection Response (0x03) ident 13 len 8
        Destination CID: 64
        Source CID: 67
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23                #81 [hci0] 39.275736
      L2CAP: Configure Request (0x04) ident 6 len 15
        Destination CID: 67
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5     #82 [hci0] 39.278301
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5     #83 [hci0] 39.304334
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16                #84 [hci0] 39.304350
      L2CAP: Configure Request (0x04) ident 14 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18                #85 [hci0] 39.304462
      L2CAP: Configure Response (0x05) ident 14 len 10
        Source CID: 67
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5     #86 [hci0] 39.324382
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 14                #87 [hci0] 39.325581
      L2CAP: Configure Response (0x05) ident 6 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> ACL Data RX: Handle 21 flags 0x02 dlen 28                #88 [hci0] 39.326714
      Channel: 64 len 24 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Request (0x06) tid 0 len 19
        Search pattern: [len 5]
          Sequence (6) with 3 bytes [8 extra bits] len 5
            UUID (3) with 2 bytes [0 extra bits] len 3
              Audio Sink (0x110b)
        Max record count: 656
        Attribute list: [len 11]
          Sequence (6) with 9 bytes [8 extra bits] len 11
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14                #89 [hci0] 39.326939
      Channel: 67 len 10 [PSM 1 mode Basic (0x00)] {chan 0}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5     #90 [hci0] 39.344372
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #91 [hci0] 39.345577
      L2CAP: Disconnection Request (0x06) ident 15 len 4
        Destination CID: 64
        Source CID: 67
< ACL Data TX: Handle 21 flags 0x00 dlen 12                #92 [hci0] 39.345669
      L2CAP: Disconnection Response (0x07) ident 15 len 4
        Destination CID: 64
        Source CID: 67
> HCI Event: Number of Completed Packets (0x13) plen 5     #93 [hci0] 39.348337
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Link Key Request (0x17) plen 6                #94 [hci0] 39.355334
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
< HCI Command: Link Key Request R.. (0x01|0x000b) plen 22  #95 [hci0] 39.355457
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Link key: eb5084631e188262296f3423f6168410
> HCI Event: Command Complete (0x0e) plen 10               #96 [hci0] 39.361387
      Link Key Request Reply (0x01|0x000b) ncmd 1
        Status: Success (0x00)
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
> HCI Event: Encryption Change (0x08) plen 4               #97 [hci0] 39.515373
        Status: Success (0x00)
        Handle: 21
        Encryption: Enabled with E0 (0x01)
> ACL Data RX: Handle 21 flags 0x02 dlen 12                #98 [hci0] 39.515556
      L2CAP: Connection Request (0x02) ident 16 len 4
        PSM: 25 (0x0019)
        Source CID: 68
< ACL Data TX: Handle 21 flags 0x00 dlen 16                #99 [hci0] 39.515599
      L2CAP: Connection Response (0x03) ident 16 len 8
        Destination CID: 0
        Source CID: 68
        Result: Connection refused - PSM not supported (0x0002)
        Status: No further information available (0x0000)
> HCI Event: Vendor (0xff) plen 4                         #100 [hci0] 39.516345
        86 03 15 00                                      ....            
> HCI Event: Number of Completed Packets (0x13) plen 5    #101 [hci0] 39.542357
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Vendor (0xff) plen 17                        #102 [hci0] 39.907376
        85 02 00 15 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00                                               .               
> HCI Event: Vendor (0xff) plen 17                        #103 [hci0] 41.907395
        85 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00                                               .               
< HCI Command: Disconnect (0x01|0x0006) plen 3            #104 [hci0] 43.508166
        Handle: 21
        Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4                 #105 [hci0] 43.509419
      Disconnect (0x01|0x0006) ncmd 1
        Status: Success (0x00)
> HCI Event: Vendor (0xff) plen 7                         #106 [hci0] 43.696430
        82 00 01 00 01 15 00                             .......         
> HCI Event: Disconnect Complete (0x05) plen 4            #107 [hci0] 43.697384
        Status: Success (0x00)
        Handle: 21
        Reason: Connection Terminated By Local Host (0x16)
@ MGMT Event: Device Disconnected (0x000c) plen 8     {0x0003} [hci0] 43.697425
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Reason: Connection terminated by local host (0x02)
@ MGMT Event: Device Disconnected (0x000c) plen 8     {0x0002} [hci0] 43.697425
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Reason: Connection terminated by local host (0x02)
@ MGMT Event: Device Disconnected (0x000c) plen 8     {0x0001} [hci0] 43.697425
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Reason: Connection terminated by local host (0x02)
< HCI Command: Write Scan Enable (0x03|0x001a) plen 1     #108 [hci0] 43.736326
        Scan enable: Page Scan (0x02)
> HCI Event: Command Complete (0x0e) plen 4               #109 [hci0] 43.737374
      Write Scan Enable (0x03|0x001a) ncmd 1
        Status: Success (0x00)
> HCI Event: Vendor (0xff) plen 2                        #110 [hci0] 119.701148
        81 00                                            ..              
> HCI Event: Connect Request (0x04) plen 10              #111 [hci0] 119.702193
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
        Link type: ACL (0x01)
< HCI Command: Accept Connection.. (0x01|0x0009) plen 7  #112 [hci0] 119.702268
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Role: Master (0x00)
> HCI Event: Command Status (0x0f) plen 4                #113 [hci0] 119.704185
      Accept Connection Request (0x01|0x0009) ncmd 1
        Status: Success (0x00)
> HCI Event: Role Change (0x12) plen 8                   #114 [hci0] 119.859232
        Status: Success (0x00)
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Role: Master (0x00)
> HCI Event: Vendor (0xff) plen 2                        #115 [hci0] 120.137237
        81 01                                            ..              
> HCI Event: Vendor (0xff) plen 7                        #116 [hci0] 120.138235
        82 00 00 00 01 15 00                             .......         
> HCI Event: Connect Complete (0x03) plen 11             #117 [hci0] 120.139239
        Status: Success (0x00)
        Handle: 21
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Link type: ACL (0x01)
        Encryption: Disabled (0x00)
< HCI Command: Read Remote Suppo.. (0x01|0x001b) plen 2  #118 [hci0] 120.139646
        Handle: 21
> HCI Event: Command Status (0x0f) plen 4                #119 [hci0] 120.141192
      Read Remote Supported Features (0x01|0x001b) ncmd 1
        Status: Success (0x00)
< HCI Command: Write Scan Enable (0x03|0x001a) plen 1    #120 [hci0] 120.141278
        Scan enable: No Scans (0x00)
> HCI Event: Command Complete (0x0e) plen 4              #121 [hci0] 120.142192
      Write Scan Enable (0x03|0x001a) ncmd 1
        Status: Success (0x00)
> ACL Data RX: Handle 21 flags 0x02 dlen 10              #122 [hci0] 120.149085
      L2CAP: Information Request (0x0a) ident 2 len 2
        Type: Extended features supported (0x0002)
> HCI Event: Read Remote Supported Fea.. (0x0b) plen 11  #123 [hci0] 120.187246
        Status: Success (0x00)
        Handle: 21
        Features: 0xbf 0x3e 0x8d 0xfe 0xdb 0xff 0x5b 0x87
          3 slot packets
          5 slot packets
          Encryption
          Slot offset
          Timing accuracy
          Role switch
          Sniff mode
          Power control requests
          Channel quality driven data rate (CQDDR)
          SCO link
          HV2 packets
          HV3 packets
          CVSD synchronous data
          Power control
          Transparent synchronous data
          Broadcast Encryption
          Enhanced Data Rate ACL 2 Mbps mode
          Enhanced Data Rate ACL 3 Mbps mode
          Enhanced inquiry scan
          Interlaced inquiry scan
          Interlaced page scan
          RSSI with inquiry results
          Extended SCO link (EV3 packets)
          EV4 packets
          EV5 packets
          AFH capable slave
          AFH classification slave
          LE Supported (Controller)
          3-slot Enhanced Data Rate ACL packets
          5-slot Enhanced Data Rate ACL packets
          Sniff subrating
          Pause encryption
          AFH capable master
          AFH classification master
          Enhanced Data Rate eSCO 2 Mbps mode
          Enhanced Data Rate eSCO 3 Mbps mode
          3-slot Enhanced Data Rate eSCO packets
          Extended Inquiry Response
          Simultaneous LE and BR/EDR (Controller)
          Secure Simple Pairing
          Encapsulated PDU
          Non-flushable Packet Boundary Flag
          Link Supervision Timeout Changed Event
          Inquiry TX Power Level
          Enhanced Power Control
          Extended features
< HCI Command: Read Remote Exten.. (0x01|0x001c) plen 3  #124 [hci0] 120.187320
        Handle: 21
        Page: 1
> HCI Event: Command Status (0x0f) plen 4                #125 [hci0] 120.188163
      Read Remote Extended Features (0x01|0x001c) ncmd 1
        Status: Success (0x00)
> HCI Event: Read Remote Extended Feat.. (0x23) plen 13  #126 [hci0] 120.193249
        Status: Success (0x00)
        Handle: 21
        Page: 1/2
        Features: 0x07 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          Secure Simple Pairing (Host Support)
          LE Supported (Host)
          Simultaneous LE and BR/EDR (Host)
< HCI Command: Remote Name Requ.. (0x01|0x0019) plen 10  #127 [hci0] 120.193353
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Page scan repetition mode: R2 (0x02)
        Page scan mode: Mandatory (0x00)
        Clock offset: 0x0000
< ACL Data TX: Handle 21 flags 0x00 dlen 10              #128 [hci0] 120.193375
      L2CAP: Information Request (0x0a) ident 1 len 2
        Type: Extended features supported (0x0002)
< ACL Data TX: Handle 21 flags 0x00 dlen 16              #129 [hci0] 120.193402
      L2CAP: Information Response (0x0b) ident 2 len 8
        Type: Extended features supported (0x0002)
        Result: Success (0x0000)
        Features: 0x000002b8
          Enhanced Retransmission Mode
          Streaming Mode
          FCS Option
          Fixed Channels
          Unicast Connectionless Data Reception
> HCI Event: Vendor (0xff) plen 2                        #130 [hci0] 120.195208
        81 00                                            ..              
> HCI Event: Command Status (0x0f) plen 4                #131 [hci0] 120.196188
      Remote Name Request (0x01|0x0019) ncmd 1
        Status: Success (0x00)
> ACL Data RX: Handle 21 flags 0x02 dlen 16              #132 [hci0] 120.196338
      L2CAP: Information Response (0x0b) ident 1 len 8
        Type: Extended features supported (0x0002)
        Result: Success (0x0000)
        Features: 0x000000b8
          Enhanced Retransmission Mode
          Streaming Mode
          FCS Option
          Fixed Channels
< ACL Data TX: Handle 21 flags 0x00 dlen 10              #133 [hci0] 120.196398
      L2CAP: Information Request (0x0a) ident 2 len 2
        Type: Fixed channels supported (0x0003)
> HCI Event: Number of Completed Packets (0x13) plen 5   #134 [hci0] 120.197160
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #135 [hci0] 120.198190
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Vendor (0xff) plen 2                        #136 [hci0] 120.199171
        81 01                                            ..              
> ACL Data RX: Handle 21 flags 0x02 dlen 10              #137 [hci0] 120.203732
      L2CAP: Information Request (0x0a) ident 3 len 2
        Type: Fixed channels supported (0x0003)
< ACL Data TX: Handle 21 flags 0x00 dlen 20              #138 [hci0] 120.203808
      L2CAP: Information Response (0x0b) ident 3 len 12
        Type: Fixed channels supported (0x0003)
        Result: Success (0x0000)
        Channels: 0x0000000000000006
          L2CAP Signaling (BR/EDR)
          Connectionless reception
> ACL Data RX: Handle 21 flags 0x02 dlen 20              #139 [hci0] 120.204996
      L2CAP: Information Response (0x0b) ident 2 len 12
        Type: Fixed channels supported (0x0003)
        Result: Success (0x0000)
        Channels: 0x00000000000000d2
          L2CAP Signaling (BR/EDR)
          Attribute Protocol
          Security Manager (LE)
          Security Manager (BR/EDR)
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #140 [hci0] 120.208800
      L2CAP: Connection Request (0x02) ident 4 len 4
        PSM: 1 (0x0001)
        Source CID: 64
@ MGMT Event: Device Connected (0x000b) plen 18      {0x0003} [hci0] 120.208837
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Flags: 0x00000000
        Data length: 5
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
@ MGMT Event: Device Connected (0x000b) plen 18      {0x0002} [hci0] 120.208837
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Flags: 0x00000000
        Data length: 5
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
@ MGMT Event: Device Connected (0x000b) plen 18      {0x0001} [hci0] 120.208837
        BR/EDR Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Flags: 0x00000000
        Data length: 5
        Class: 0x5a020c
          Major class: Phone (cellular, cordless, payphone, modem)
          Minor class: Smart phone
          Networking (LAN, Ad hoc)
          Capturing (Scanner, Microphone)
          Object Transfer (v-Inbox, v-Folder)
          Telephony (Cordless telephony, Modem, Headset)
< ACL Data TX: Handle 21 flags 0x00 dlen 16              #141 [hci0] 120.208898
      L2CAP: Connection Response (0x03) ident 4 len 8
        Destination CID: 64
        Source CID: 64
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23              #142 [hci0] 120.208909
      L2CAP: Configure Request (0x04) ident 3 len 15
        Destination CID: 64
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> ACL Data RX: Handle 21 flags 0x02 dlen 16              #143 [hci0] 120.212601
      L2CAP: Configure Request (0x04) ident 5 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18              #144 [hci0] 120.212660
      L2CAP: Configure Response (0x05) ident 5 len 10
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> ACL Data RX: Handle 21 flags 0x02 dlen 14              #145 [hci0] 120.213807
      L2CAP: Configure Response (0x05) ident 3 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> HCI Event: Remote Name Req Complete (0x07) plen 255    #146 [hci0] 120.216164
        Status: Success (0x00)
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Name: VIVO
> HCI Event: Number of Completed Packets (0x13) plen 5   #147 [hci0] 120.217189
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 31              #148 [hci0] 120.217501
      Channel: 64 len 27 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Request (0x06) tid 0 len 22
        Search pattern: [len 5]
          Sequence (6) with 3 bytes [8 extra bits] len 5
            UUID (3) with 2 bytes [0 extra bits] len 3
              Handsfree (0x111e)
        Max record count: 656
        Attribute list: [len 14]
          Sequence (6) with 12 bytes [8 extra bits] len 14
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0311
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14              #149 [hci0] 120.217638
      Channel: 64 len 10 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #150 [hci0] 120.218158
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #151 [hci0] 120.219186
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #152 [hci0] 120.220185
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #153 [hci0] 120.221186
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #154 [hci0] 120.222166
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #155 [hci0] 120.325085
      L2CAP: Disconnection Request (0x06) ident 6 len 4
        Destination CID: 64
        Source CID: 64
< ACL Data TX: Handle 21 flags 0x00 dlen 12              #156 [hci0] 120.325180
      L2CAP: Disconnection Response (0x07) ident 6 len 4
        Destination CID: 64
        Source CID: 64
> HCI Event: Number of Completed Packets (0x13) plen 5   #157 [hci0] 120.361193
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #158 [hci0] 120.397604
      L2CAP: Connection Request (0x02) ident 7 len 4
        PSM: 1 (0x0001)
        Source CID: 65
< ACL Data TX: Handle 21 flags 0x00 dlen 16              #159 [hci0] 120.397719
      L2CAP: Connection Response (0x03) ident 7 len 8
        Destination CID: 64
        Source CID: 65
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23              #160 [hci0] 120.397743
      L2CAP: Configure Request (0x04) ident 4 len 15
        Destination CID: 65
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #161 [hci0] 120.440209
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #162 [hci0] 120.441243
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16              #163 [hci0] 120.443921
      L2CAP: Configure Request (0x04) ident 8 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18              #164 [hci0] 120.444123
      L2CAP: Configure Response (0x05) ident 8 len 10
        Source CID: 65
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> ACL Data RX: Handle 21 flags 0x02 dlen 14              #165 [hci0] 120.445048
      L2CAP: Configure Response (0x05) ident 4 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5   #166 [hci0] 120.446170
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 34              #167 [hci0] 120.482517
      Channel: 64 len 30 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Request (0x06) tid 0 len 25
        Search pattern: [len 8]
          Sequence (6) with 6 bytes [8 extra bits] len 8
            UUID (3) with 2 bytes [0 extra bits] len 3
              Headset (0x1108)
            UUID (3) with 2 bytes [0 extra bits] len 3
              Headset HS (0x1131)
        Max record count: 656
        Attribute list: [len 14]
          Sequence (6) with 12 bytes [8 extra bits] len 14
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0302
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14              #168 [hci0] 120.482836
      Channel: 65 len 10 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #169 [hci0] 120.515178
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #170 [hci0] 120.518820
      L2CAP: Disconnection Request (0x06) ident 9 len 4
        Destination CID: 64
        Source CID: 65
< ACL Data TX: Handle 21 flags 0x00 dlen 12              #171 [hci0] 120.518936
      L2CAP: Disconnection Response (0x07) ident 9 len 4
        Destination CID: 64
        Source CID: 65
> HCI Event: Number of Completed Packets (0x13) plen 5   #172 [hci0] 120.521245
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #173 [hci0] 120.523787
      L2CAP: Connection Request (0x02) ident 10 len 4
        PSM: 1 (0x0001)
        Source CID: 66
< ACL Data TX: Handle 21 flags 0x00 dlen 16              #174 [hci0] 120.523914
      L2CAP: Connection Response (0x03) ident 10 len 8
        Destination CID: 64
        Source CID: 66
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23              #175 [hci0] 120.523930
      L2CAP: Configure Request (0x04) ident 5 len 15
        Destination CID: 66
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #176 [hci0] 120.551220
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16              #177 [hci0] 120.595161
      L2CAP: Configure Request (0x04) ident 11 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5   #178 [hci0] 120.595187
        Num handles: 1
        Handle: 21
        Count: 1
< ACL Data TX: Handle 21 flags 0x00 dlen 18              #179 [hci0] 120.595275
      L2CAP: Configure Response (0x05) ident 11 len 10
        Source CID: 66
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5   #180 [hci0] 120.598176
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 14              #181 [hci0] 120.598794
      L2CAP: Configure Response (0x05) ident 5 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> ACL Data RX: Handle 21 flags 0x02 dlen 31              #182 [hci0] 120.600025
      Channel: 64 len 27 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Request (0x06) tid 0 len 22
        Search pattern: [len 5]
          Sequence (6) with 3 bytes [8 extra bits] len 5
            UUID (3) with 2 bytes [0 extra bits] len 3
              Headset (0x1108)
        Max record count: 656
        Attribute list: [len 14]
          Sequence (6) with 12 bytes [8 extra bits] len 14
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0302
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14              #183 [hci0] 120.600240
      Channel: 66 len 10 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #184 [hci0] 120.603211
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #185 [hci0] 120.605125
      L2CAP: Disconnection Request (0x06) ident 12 len 4
        Destination CID: 64
        Source CID: 66
< ACL Data TX: Handle 21 flags 0x00 dlen 12              #186 [hci0] 120.605265
      L2CAP: Disconnection Response (0x07) ident 12 len 4
        Destination CID: 64
        Source CID: 66
> HCI Event: Number of Completed Packets (0x13) plen 5   #187 [hci0] 120.686258
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #188 [hci0] 120.771357
      L2CAP: Connection Request (0x02) ident 13 len 4
        PSM: 1 (0x0001)
        Source CID: 67
< ACL Data TX: Handle 21 flags 0x00 dlen 16              #189 [hci0] 120.771500
      L2CAP: Connection Response (0x03) ident 13 len 8
        Destination CID: 64
        Source CID: 67
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
< ACL Data TX: Handle 21 flags 0x00 dlen 23              #190 [hci0] 120.771520
      L2CAP: Configure Request (0x04) ident 6 len 15
        Destination CID: 67
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Basic (0x00)
          TX window size: 0
          Max transmit: 0
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #191 [hci0] 120.823254
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Number of Completed Packets (0x13) plen 5   #192 [hci0] 120.824222
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 16              #193 [hci0] 120.861369
      L2CAP: Configure Request (0x04) ident 14 len 8
        Destination CID: 64
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
< ACL Data TX: Handle 21 flags 0x00 dlen 18              #194 [hci0] 120.861481
      L2CAP: Configure Response (0x05) ident 14 len 10
        Source CID: 67
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
> HCI Event: Number of Completed Packets (0x13) plen 5   #195 [hci0] 120.900236
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 14              #196 [hci0] 120.901383
      L2CAP: Configure Response (0x05) ident 6 len 6
        Source CID: 64
        Flags: 0x0000
        Result: Success (0x0000)
> ACL Data RX: Handle 21 flags 0x02 dlen 28              #197 [hci0] 120.903812
      Channel: 64 len 24 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Request (0x06) tid 0 len 19
        Search pattern: [len 5]
          Sequence (6) with 3 bytes [8 extra bits] len 5
            UUID (3) with 2 bytes [0 extra bits] len 3
              Audio Sink (0x110b)
        Max record count: 656
        Attribute list: [len 11]
          Sequence (6) with 9 bytes [8 extra bits] len 11
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0001
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0004
            Unsigned Integer (1) with 2 bytes [0 extra bits] len 3
              0x0009
        Continuation state: 0
< ACL Data TX: Handle 21 flags 0x00 dlen 14              #198 [hci0] 120.904083
      Channel: 67 len 10 [PSM 1 mode Basic (0x00)] {chan 1}
      SDP: Service Search Attribute Response (0x07) tid 0 len 5
        Attribute bytes: 2
        Continuation state: 0
> HCI Event: Number of Completed Packets (0x13) plen 5   #199 [hci0] 120.931259
        Num handles: 1
        Handle: 21
        Count: 1
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #200 [hci0] 121.012648
      L2CAP: Disconnection Request (0x06) ident 15 len 4
        Destination CID: 64
        Source CID: 67
< ACL Data TX: Handle 21 flags 0x00 dlen 12              #201 [hci0] 121.012795
      L2CAP: Disconnection Response (0x07) ident 15 len 4
        Destination CID: 64
        Source CID: 67
> HCI Event: Number of Completed Packets (0x13) plen 5   #202 [hci0] 121.053236
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Link Key Request (0x17) plen 6              #203 [hci0] 121.151269
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
< HCI Command: Link Key Request.. (0x01|0x000b) plen 22  #204 [hci0] 121.151384
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
        Link key: eb5084631e188262296f3423f6168410
> HCI Event: Command Complete (0x0e) plen 10             #205 [hci0] 121.157270
      Link Key Request Reply (0x01|0x000b) ncmd 1
        Status: Success (0x00)
        Address: 3C:B6:B7:41:A8:8A (vivo Mobile Communication Co., Ltd.)
> HCI Event: Encryption Change (0x08) plen 4             #206 [hci0] 121.394260
        Status: Success (0x00)
        Handle: 21
        Encryption: Enabled with E0 (0x01)
> ACL Data RX: Handle 21 flags 0x02 dlen 12              #207 [hci0] 121.395176
      L2CAP: Connection Request (0x02) ident 16 len 4
        PSM: 25 (0x0019)
        Source CID: 68
> HCI Event: Vendor (0xff) plen 4                        #208 [hci0] 121.395190
        86 03 15 00                                      ....            
< ACL Data TX: Handle 21 flags 0x00 dlen 16              #209 [hci0] 121.395244
      L2CAP: Connection Response (0x03) ident 16 len 8
        Destination CID: 0
        Source CID: 68
        Result: Connection refused - PSM not supported (0x0002)
        Status: No further information available (0x0000)
> HCI Event: Number of Completed Packets (0x13) plen 5   #210 [hci0] 121.461283
        Num handles: 1
        Handle: 21
        Count: 1
> HCI Event: Vendor (0xff) plen 17                       #211 [hci0] 121.909283
        85 02 00 15 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00                                               .               
> HCI Event: Vendor (0xff) plen 17                       #212 [hci0] 123.909337
        85 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        00                                               .               
< HCI Command: Disconnect (0x01|0x0006) plen 3           #213 [hci0] 125.172168
        Handle: 21
        Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4                #214 [hci0] 125.173380
      Disconnect (0x01