MicroBT Troubleshooting Guide
104 error codes and fixes for MicroBT ASIC miners.
Whatsminer M30S – Share Rejection Spike
Whatsminer M30S, M30S+, M30S++ (M30V1/M30V2/M30V3 hardware revisions)
Whatsminer M30S – Internal PSU Board Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer – MinerTool Connection Timeout
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M50, M50S, M50S+, M50S++, M53,...
Whatsminer M30S – Environmental Sensor Error
Whatsminer M30S, M30S+, M30S++ (M30V1 / M30V2 / M30V3 hardware revisions; button-board...
Whatsminer M60S – Firmware Signature Verification Failed
Whatsminer M60S, M60S+, M60S++
Whatsminer – Cannot Access Web Interface After Reset
Whatsminer M20, M21, M30S, M30S+, M30S++, M31S, M50, M50S, M50S+, M50S++, M53,...
Whatsminer M50S – Overclocking Instability
Whatsminer M50S, M50S+, M50S++
Whatsminer M30S – Water Cooling Leak Detection
Whatsminer M30S++ Hydro, M33S++, M53, M53S, M56, M56S (hydro variants), and any...
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++
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