: Unzip the .rar file to get the .bin firmware.

The official repository for Geant electronics typically hosts these files. You can find the specific update here:

: Do not turn off the power during the process, as this can brick the device. Important Troubleshooting

: Copy the .bin file to the root of a FAT32-formatted USB drive. Update Procedure : Insert the USB into the receiver. Go to Menu > Expansion > USB . Select the .bin file and confirm to start the update.

(Note: Most users now utilize this version specifically to fix "SW is wrong" errors or as a base for later updates). How to Install