Here is what I did to install the Qualcomm 3 G modem on my Z31 (Ubuntu 9.04
Jaunty). From several sources, thanks to all.

1. install qcserial module (maybe not necessary anymore in 9.10)

copy qserial.c et Makefile from
sudo make install

2. install gobi_loader

download from<>
sudo make install

3. install firmware

Boot in Windows, look for the right driver for your region in C:\Documents
and Settings\All Users\Application Data\QUALCOMM\QDLService\Options.txt
then copy amss.mbn et apss.mbn from the corresponding directory (the one
listed in Options.txt) to /lib/firmware/gobi that you have to create in
Ubuntu using administrative privileges

4. reload qcserial

sudo modprobe -r qcserial
sudo modprobe qcserial

5. To activate the modem and make it load the driver when I want ot use it,
I use the following script with the Wireless switch on the ON position (

echo 0 > /sys/class/rfkill/rfkill2/state
sleep 1
modprobe -r qcserial
#modprobe -r usbserial
#modprobe usbserial vendor=0x05c6 product=0x9222
#modprobe usbserial
modprobe qcserial
echo 1 > /sys/class/rfkill/rfkill2/state

Then the modem appear in network-manager and you can configure the
connection with your 3G provider's settings.

Hope this helps. Nothing new. Just compilation of different informations.

sony-vaio-z.txt · Last modified: 2013/03/04 22:08 by a
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