Because a "dump" is a raw memory image, it often requires more than just a USB stick if the device won't boot.
If the receiver still menus properly, you can sometimes load the file via the USB Update menu. Ensure the file is named correctly (usually flash.bin or similar) and placed in the root of a FAT32-formatted USB drive. Download dump geant R200 FTA mini rar
A common shared file for this model series is the DUMP-GN-R100/R200/R300 FTA Mini HD hosted on MediaFire. Because a "dump" is a raw memory image,
Click "Start" and then power on the receiver. The progress bar should move as the memory is rewritten. Download dump geant R200 FTA mini rar
Link your PC to the receiver using the RS232 cable.
Browse and select the extracted .bin dump file.