1.rename the firmware to "TEPatch.bin"
2.Please go to 192.168.1.1,choose "upgrade"->"local upgrade" submenu to choose the firmware "TEPatch.bin"
3.when upgraded,it will clews "File 'TEPatch.bin' successfully saved to flash.The modem has to be rebooted for the new image to take effect"
4.Then please click "save & reboot" button to reboot the modem
5.At last,please press the "reset" button in the front of the modem for three times continuously.