Whatsminer test power firmware upgrading guide

1. Power Repair Test Firmware Instructions:

Firmware: whatsminer-test power-20220420.bin

PSU scope of use: P21, P21D, P21E, P221C, P222C, P221B, P222B

Control board type: H3, H6OS, H616

2. Tools:

Tool：whatsminer tool 8.1.30

3. Upgrade:

Scan to control board IP via whatsminer tools 8.1.30, check the IP, click ‘upgrade’-‘select file’-‘star upgrade.’

After the upgrade is successful, check the version information and confirm that the ‘version info’ is changed to 20220420.

4. Connect:

Connect the PSU to the control board, and plug the network cable.

5. Check:

Power on the PSU and check the voltage.

6. Power off:

Change to the next PSU, which need to be tested, then repeat item 4-5.