that's only to fix the hash boards, it won't work for the control board.
he needs to flush it using an SD card.
download the tool from bitmain >
https://service.bitmain.com/support/download?product=Flashing%20SD%20card%20with%20imageand then you will need the SD firmware which i can't seem to find on bitmain website, but i found this on the forum
https://bitcointalk.org/index.php?topic=5029225.0the guy has it uploaded somewhere
* i am not responsible for any damage caused by any of the files, DYOR and do this at your own risk what i would do , is contact bitmain and ask them for the file, it would be safer that way.