Once rebooted, go to Settings > Factory Reset . This clears any residual data from the old firmware and prevents conflicts. Re-enter your satellite settings (LNB configuration, DiSEqC switch ports).
While many receivers use the .bin format, the GxRom.bin method is most famously associated with the and Hyper series. Notable models include: Gxrom Bin Starsat
Format your USB drive to FAT32. Extract the downloaded Gxrom Bin file (it usually comes in a .rar or .zip archive) and copy the .bin file directly to the root directory of the USB drive. Once rebooted, go to Settings > Factory Reset