Install these two packages:
# dpkg -i usb-modeswitch-data_20100826-1+squeeze0_all.deb
# dpkg -i usb-modeswitch_1.1.4-2_amd64.debĀ (mine is 64-bit machine)
Check the output from # lsusb, it will show the Vendor & Product ID which is
ID 12d1:1446 Huawei Technologies Co., Ltd
According to some websites you have to add ’140b’ under TargetProductList in /etc/usb_modeswitch.d/12d1:1446 but its already there, still the modem won’t connect. This command will do the trick
# usb_modeswitch -c /etc/usb_modeswitch.d/12d1:1446
in /etc/usb_modeswitch.d/12d1:1446 file the list line should read:
MessageContent=”55534243123456780000000000000011060000000000000000000000000000″
last thing the userid/pass is internet/internet.