MicroBT Troubleshooting Guide
66 error codes and fixes for MicroBT ASIC miners.
Whatsminer – Factory Reset via Button
Whatsminer M20, M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M50, M50S, M50S+,...
Whatsminer M60S – Chip Bin Mismatch
Whatsminer M60S, M60S+, M60S++
Whatsminer M50S – Power Limit Triggered
Whatsminer M50S, M50S+, M50S++
Whatsminer M30S – Hashrate Fluctuation
Whatsminer M30S, M30S+, M30S++ (M30V10 / M30V20 / M30V30 hardware revisions)
Whatsminer – MinerTool Diagnostic Codes
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M50, M50S, M50S+, M50S++,...
Whatsminer M60S – PSU Efficiency Drop
Whatsminer M60S, M60S+, M60S++
Whatsminer M50S – Hashboard Error via MinerTool
M50S (primary) · M50S+ · M50S++ · related procedures apply to M50,...
Whatsminer M30S – LED Slow Red Blink
M30S · M30S+ · M30S++ (same control-board LED schema, firmware-dependent on build...
Whatsminer M30S – LED Fast Red Blink
Whatsminer M30S · M30S+ · M30S++ (M30V1 / M30V2 / M30V3 hardware...
Whatsminer M50S – Grinding Fan Noise
Whatsminer M50S, M50S+, M50S++ (procedure overlaps with M30S, M53S, M56S, M60S —...
Whatsminer M30S – Rattling Noise
Whatsminer M30S, M30S+, M30S++
Whatsminer M60S – Control Board Boot Loop
Whatsminer M60S, M60S+, M60S++
Whatsminer – LED Status Code Reference
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M50, M50S, M50S+, M50S++,...
Whatsminer M50S – Control Board Not Responding
Whatsminer M50S, M50S+, M50S++
Whatsminer M30S – Control Board Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer M60S – Firmware Rollback Failed
Whatsminer M60S, M60S+, M60S++
Whatsminer M50S – MinerTool Firmware Update Failed
M50S (primary) · M50 · M50S+ · M50S++ — procedures carry to...
Whatsminer M30S – Firmware Recovery Mode
Whatsminer M30S, M30S+, M30S++ (BTminer families 20201222.x through 20251209.x)
Whatsminer – Firmware Update via MinerTool
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M32, M50S, M50S+, M50S++, M53,...
Whatsminer M30S – MinerTool Cannot Connect
Whatsminer M30S, M30S+, M30S++
Whatsminer – Network Configuration Reset
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M50, M50S, M50S+, M50S++, M53,...
Whatsminer M60S – Power Supply Failure
Whatsminer M60S, M60S+, M60S++
Whatsminer M50S – Power Supply Failure
Whatsminer M50S, M50S+, M50S++
Whatsminer M30S – Power Supply Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer M50S – Low Hashrate
Whatsminer M50S · M50S+ · M50S++ (SHA-256 air-cooled lineup, BM1398-class MicroBT silicon...
Whatsminer M30S – Low Hashrate
Whatsminer M30S, M30S+, M30S++ (BM1375 / BM1398-adjacent custom MicroBT silicon — M30S...
Whatsminer M60S – Hashboard Not Detected
Whatsminer M60S, M60S+, M60S++ (same SM3-generation hashboard architecture)
Whatsminer M50S – Hashboard Not Detected
Whatsminer M50S (applicable to M50, M50S+, M50S++ with minor voltage deltas)
Whatsminer M30S – Hashboard Not Detected
Whatsminer M30S, M30S+, M30S++ (custom MicroBT silicon — 3 × 105 chips...
Whatsminer M60S – Fan Speed Error
Whatsminer M60S, M60S+, M60S++ (same SM3-generation chassis and 4-fan PWM layout)
Need MicroBT Repair?
D-Central offers professional repair services for MicroBT miners. Hashboard repair, diagnostics, and full refurbishment since 2016.