huawei e1750 3g modem not work

[iav]

3G usb modem Huawei E1750 not work with today's lucid.
When I insert modem new filesystem found, and internal card reader mounts. That is all. No new connections appears in network manager, as it should.

[James P. Carter (jpcarter)]

I changed the package selection to modemmanager.

[s0undt3ch (ufs)]

I had to add to /etc/usb_modeswitch.d/1446:12d1:

# Huawei Mobile Broadband E1750
###############################

DefaultVendor=0x12d1
DefaultProduct=0x1446

TargetVendor = 0x12d1
TargetProduct= 0x1001
MessageContent="55534243000000000000000000000011060000000000000000000000000000"
MessageEndpoint=0x01
CheckSuccess=5

Now modem is detected successfully, but it does not connect successfully.

Here's what I have on syslog:
May 6 18:17:53 lgl NetworkManager: <info> Activation (ttyUSB0) starting connection 'Optimus'
May 6 18:17:53 lgl NetworkManager: <info> (ttyUSB0): device state change: 3 -> 4 (reason 0)
May 6 18:17:53 lgl NetworkManager: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) scheduled...
May 6 18:17:53 lgl NetworkManager: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) started...
May 6 18:17:53 lgl NetworkManager: <info> Activation (ttyUSB0) Stage 1 of 5 (Device Prepare) complete.
May 6 18:17:53 lgl NetworkManager: <WARN> stage1_prepare_done(): GSM modem connection failed: (32) Sending command failed: device is connected
May 6 18:17:53 lgl NetworkManager: <info> (ttyUSB0): device state change: 4 -> 9 (reason 1)
May 6 18:17:53 lgl NetworkManager: <info> Marking connection 'Optimus' invalid.
May 6 18:17:53 lgl NetworkManager: <info> Activation (ttyUSB0) failed.
May 6 18:17:53 lgl NetworkManager: <info> (ttyUSB0): device state change: 9 -> 3 (reason 0)
May 6 18:17:53 lgl NetworkManager: <info> (ttyUSB0): deactivating device (reason: 0).
May 6 18:17:53 lgl modem-manager: Modem /org/freedesktop/ModemManager/Modems/7: state changed (connected -> disconnecting)
May 6 18:17:53 lgl NetworkManager: <info> (wlan0): writing resolv.conf to /sbin/resolvconf
May 6 18:17:53 lgl NetworkManager: <info> Policy set 'FBWN' (wlan0) as default for routing and DNS.
May 6 18:17:54 lgl modem-manager: Modem /org/freedesktop/ModemManager/Modems/7: state changed (disconnecting -> registered)
May 6 18:18:17 lgl modem-manager: (ttyUSB0) closing serial device...
May 6 18:18:17 lgl kernel: [ 6631.157046] usb 1-3: USB disconnect, address 15
May 6 18:18:17 lgl kernel: [ 6631.157144] option: option_instat_callback: error -108
May 6 18:18:17 lgl kernel: [ 6631.157608] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
May 6 18:18:17 lgl kernel: [ 6631.157640] option 1-3:1.0: device disconnected
May 6 18:18:17 lgl kernel: [ 6631.157946] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
May 6 18:18:17 lgl kernel: [ 6631.157988] option 1-3:1.1: device disconnected
May 6 18:18:17 lgl kernel: [ 6631.158285] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
May 6 18:18:17 lgl modem-manager: Modem /org/freedesktop/ModemManager/Modems/7: state changed (registered -> disabled)
May 6 18:18:17 lgl modem-manager: Removed modem /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3
May 6 18:18:17 lgl kernel: [ 6631.158324] option 1-3:1.2: device disconnected
May 6 18:18:17 lgl NetworkManager: <info> (ttyUSB0): now unmanaged
May 6 18:18:17 lgl NetworkManager: <info> (ttyUSB0): device state change: 3 -> 1 (reason 36)
May 6 18:18:17 lgl NetworkManager: <...

[s0undt3ch (ufs)]

Modem is not detected as an huawei modem, instead is detected as a generic modem and speed is very slow