Member Avatar for Galbatorix

hello i am having problems installing my zte broadband in ubuntu 12.04 or even fedora 17. can anybody help out.

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Common causes for a ZTE USB broadband dongle not working on Ubuntu 12.04 / Fedora 17 are: the device presenting as a USB storage (virtual CD) instead of a modem, the kernel driver not binding, or missing APN/connection setup. As asked for details and following ’s pointer to helper scripts, the steps below show how to diagnose and fix the problem manually so the root cause is visible.

Start by collecting basic diagnostics right after plugging the dongle in:

lsusb
dmesg | tail -n 50
ls /dev/ttyUSB* /dev/ttyACM*

If the device is still a storage gadget, install the mode-switching package (handles the flip from storage to modem). On Ubuntu:

sudo apt-get install usb-modeswitch

On Fedora 17:

sudo yum install usb_modeswitch

Unplug/replug and recheck dmesg and /dev. If no serial nodes appear, load the generic option driver and bind the vendor/product id from lsusb (replace vvvv and pppp with the ids shown by lsusb):

sudo modprobe option
sudo sh -c 'echo "vvvv pppp" > /sys/bus/usb-serial/drivers/option1/new_id'

Once /dev/ttyUSB* exists, use NetworkManager’s Mobile Broadband wizard and enter the carrier APN (carrier documentation provides the exact APN/credentials). If NM fails, try a simple wvdial config (replace placeholders):

[Dialer Defaults]
Init1 = ATZ
Stupid Mode = 1
Modem = /dev/ttyUSB0
Phone = *99#
Username = {username or blank}
Password = {password or blank}
Carrier = {APN}

Other troubleshooting tips: disable any SIM PIN temporarily, test the modem with a serial terminal (AT -> OK), watch kernel/syslog messages (dmesg and /var/log/syslog or journalctl -f), try different USB ports, and report back the lsusb line plus recent dmesg output if further help is needed. ’s script can automate some steps, but collecting the above outputs makes targeted fixes possible.

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Member Avatar for zeroliken

could you post a more detailed description of the problem

Member Avatar for shapy

if its **modem **try to check this software try this link.

Member Avatar for Galbatorix

Thanks for the script.

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