: Download the correct firmware file and copy it to a FAT32-formatted USB drive.
The search phrase is a perfect example of an ambiguous, potentially dangerous software key. No legitimate developer distributes updates this way. R12943-mj2-r5370 Software -UPD- Download 2022
Flashing the wrong firmware version can cause your receiver to become completely unresponsive. Always verify that your matches the software version exactly in the "System Information" menu of your receiver before proceeding. : Download the correct firmware file and copy