PC:
http://192.168.0.1/goform/goform_set_cmd_process?goformId=USB_MODE_SWITCH&usb_mode=6
adb push ttl64.tgz /ttl64.tgz
adb push ttl64 /ttl64
adb shell


MODEM:
cd /
tar zxvf ttl64.tgz
rm ttl64.tgz
mv ttl64 /etc/init.d/ttl64
reboot