For upgrading the Firmware please refer to the steps as below
1.Please disconnect the power supply cord to the cradle.
2.Press the IP Reset switch while re-connecting the power cord to the cradle.
3.Download the deploy program into the 83xx terminal, then the terminal will display a selection menu.
4.Seat the terminal in the cradle.
5.From the terminal menu, select Kernel to download new Kernel or select User to download new user program
Ethernet Cradle Firmware Deploy Program