The Whatsminer M3 is notoriously sensitive to incorrect flashing procedures.
The M3 usually uses an H3 or ZYNQ board. Log into the miner's IP in a browser to confirm your board type on the "Overview" page. whatsminer m3 firmware
Alternatively, SSH into the miner (root / root or admin / admin) and run: The Whatsminer M3 is notoriously sensitive to incorrect
Access the miner’s web interface (default IP: 192.168.1.254 – though this may vary). Go to or check the Overview page. whatsminer m3 firmware