Teracom T-U500 EVDO modem ( 15eb:7153 ) does not get detected

Bug #1210119 reported by Aditya2204 on 2013-08-08
This bug affects 1 person
Affects Status Importance Assigned to Milestone
usb-modeswitch (Ubuntu)

Bug Description

I recently purchased a Teracom T-U500 EVDO modem for use with BSNL network.

However, on plugging in the modem does not get detected.

I have tried using both the default usb_modeswitch packages and also the latest ones given on the modeswitch site.
I have also tried it on USB 2.0 and 3.0 ports.

I have also tried it on Ubuntu 12.10 x64, i386 and Ubuntu 13.04 x64.

In none of the cases could I get it to detect.

Surprisingly, the modem gets detected when these packages are installed and also show up in the Network Manager.

Here is a file with dmesg and lsusb logs given.

Aditya2204 (aditya2204) wrote :
Aditya2204 (aditya2204) wrote :

One thing though. Lately, I used an official Linux client in .deb format that is present in the storage in the modem accessed via Windows and somehow got it running.

Thereafter, I got successfully connected to the internet.

Also, the method works on both 12.10 and 13.04 with usb_modeswitch removed.
I also, disable the NetworkManager for completely while using it.

Lars Melin (larsm17) wrote :

Not a usb_modeswitch problem, 15eb:7153 has been in the usb_modeswitch data package since Aug 2012.
dmesg shows a disconnect of device 6 (the hub) and device 8 (the 3G dongle connected to that hub).

Arpan (arpan-patwari) wrote :

I got the solution(Only if you have a laptop or neighbor's wi-fi password)

copy the .deb package and try installing by

sudo dpkg -i <package>.deb

it will install but still not run... Go to the /opt/ folder and there you will find the <3GModem>folder

cd /opt/3GModem & ls

Here you will find the ModemClient script file..run it

It will show some missing dependencies, install them via another internet connection (Go to the nearby cafe or borrow someone's Ethernet)

sudo apt-get install <required dependencies>

It will run but connection might fail due to root privileges so open another terminal and type
"sudo /opt/3GModem/ModemClient"

It worked on my laptop and so should yours by the way i am using 13.10 ubuntu version

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