Recently my ISP has been acting up, so I decided to setup a “backup” Internet connection that I can activate by simply plugging a USB stick into my Fonera 2.0N router.
Unfortunately my HUAWEI K3765 3G modem is not compatible with Fonera 2.0N wifi router out of the box, at least not with the current stable version of the firmware (18.104.22.168 aka Gari the Hummingbird).
Here is what I had to do to make the USB modem work with Fonera 2.0N:
- for some crazy reason, my 3G modem refuses to work on Fonera 2.0N if there are some SMS stored on it. Plug the 3G modem into your PC and remove any SMS you may have received. YMMV.
- upgrade your Fonera 2.0N to the latest 22.214.171.124 firmware, choosing the “developer” image. You need the developer version to ssh into your Fonera 2.0N.
- ssh into your Fonera 2.0N router.
- edit /etc/config/umtsd:
config 'umtsd' 'umtsd'
option '_country' '_custom'
option 'apn' 'replacewithyourapn'
config 'umtsdstate' 'umtsdstate'
config 'umtsdevice' 'option12D11465'
option 'vendor' 'Huawei'
option 'device' 'K3765'
option 'data' '/dev/ttyUSB0'
</a> option 'cmd' '/dev/ttyUSB0'
- plug the HUAWEI K3765 into the Fonera 2.0N router
- wait a few seconds and then run:
1echo "0x12d1 0x1465" >/sys/bus/usb-serial/drivers/option1/new_id
Visit http://fonera/luci/fon_devices/fon_umts and check the status of your 3G modem.
If it still doesn’t work, you may have to follow the instructions provided by stex1967:
Create the file /etc/usb-modeswitch.conf with the following content:
Also create the file /etc/rc.d/k3765:
echo "0x12d1 0x1465" >/sys/bus/usb-serial/drivers/option1/new_id
chmod 755 /etc/init.d/k3765
and reboot. Thumbs up!
An updated list of supported 3G USB modems is available at http://wiki.fon.com/wiki/3G_compatibility