ASIC Troubleshooting Database
369+ error codes with step-by-step fixes for every major ASIC miner.
Most Common Issues
Antminer S19 – Temperature Too High (Temp1/Temp2 > 95°C)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro (3250 W...
Antminer S19 – Hashboard Not Detected (0 ASIC)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S9 – Fan Speed Error
Antminer S9, S9i, S9j, S9k, S9 SE
Whatsminer M30S – Power Supply Failure
Whatsminer M30S, M30S+, M30S++
Antminer S19 – Firmware Update Failed
Antminer S19 · S19 Pro · S19j · S19j Pro · S19...
Antminer S19 – Cannot Connect to Pool
All Antminer models -- S9, S9i, S9j, S9k, S17, S17 Pro, S17+,...
Bitaxe – Not Hashing / Zero Hashrate
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe Gamma Turbo (GT), Bitaxe Hex,...
Antminer S21 – PSU Overcurrent Protection
Antminer S21, S21 Pro (all bins) — stock APW21 / APW221-15 PSU...
All Error Codes
12V Rail Sag — Hashboard Brownout Under Load
Cross-cutting: every external-PSU ASIC miner — Antminer S9 / S17 / S19...
Antminer – 220V to 110V Wrong Connection
Antminer S9, S9i, S9j, S9k, S9 SE, S17, S17 Pro, S17+, S19,...
Antminer – APW PSU Fan Failure
Antminer APW3++, APW7, APW9, APW9+, APW12 (the full Bitmain APW power supply...
Antminer – APW PSU Not Powering On
APW3++, APW7, APW9, APW9+, APW12 — across Antminer S9, S9i, S9j, S9k,...
Antminer – Autotune Firmware Crash
Antminer S17 · S17 Pro · S17+ · S17e · S19 ·...
Antminer – BHB42 BMMiner Version Mismatch
Antminer units reporting model string ANTMINER BHB42xxx — predominantly S17 / S17...
Antminer – CGMiner / BMMiner Crash
Antminer S9 · S9i · S9j · T9+ · L3+ · L7...
Antminer – Control Board Beeping
All Antminers with on-board buzzer: S9, S9j, S9k, S17, S17 Pro, S17+,...
Antminer – Control Board Clock Drift
Antminer S9, S17, S17 Pro, S19, S19 Pro, S19j, S19j Pro, S19...
Antminer – Control Board Ethernet Port Failure
Antminer S9, T9, R4, L3+, T17, S17, S17+, S17 Pro, T19, S19,...
Antminer – Custom Firmware Bricked Control Board
Antminer S9 · S9j · S9k · T9+ · S17 · S17...
Antminer – Factory Reset Procedure
S9 · S9i · S9j · S9k · T17 · S17 ·...
Antminer – Fan Blade Damage Noise
Antminer S9, S9i, S9j, S9k, L3+, S17, S17 Pro, S17+, T17, S19,...
Antminer – Fan RPM Too Low
All Antminer models — S9 / S9i / S9j / S17 /...
Antminer – Firmware Corrupted / Bricked
All Antminer models — S9, S9i, S9j, S9k, T9+, S17, S17 Pro,...
Antminer – Green LED No Hashing
Antminer S9, S9i, S9j, S9k, T17, S17, S17 Pro, S17+, S19, S19...
Antminer – Hashboard Short Circuit
Antminer S9, S9i, S9j, L3+, L7, S17, S17 Pro, S17+, T17, S19,...
Antminer – IP Report Button Not Working
Antminer S9, S9i, S9j, S17, S17 Pro, S17+, T17, L3+, L7, S19,...
Antminer – LED Blinking Red/Green
Antminer S9, S9i, S9j, S9k, T9+, T17, S17, S17 Pro, S17+, S19,...
Antminer – LED Indicator Red Solid
Antminer S9, S9i, S9j, S9k, T9+, T17, S17, S17 Pro, S17+, T19,...
Antminer – Loose Heatsink Rattle
Antminer S9, S9i, S9j, S9k, S9 SE, L3+, L3++, L7, T17, S17,...
Antminer – Power Surge Damage
All ASIC miners — Antminer S9, S17, S17 Pro, T17, S19, S19...
Antminer – PSU Voltage Out of Range
All Antminer models with APW-series PSUs — APW3 / APW3+ / APW3++...
Antminer – RTC Battery Dead
Antminer S9, S9i, S9j, S17, S17 Pro, T17, S19, S19 Pro, S19j,...
Antminer – SD Card Corruption
Antminer S9, S9i, S9j, S9k, S9 SE, L3+, L3++, T9+, R4, D3,...
Antminer – SSH Connection Refused
S9 · S9j · S9k · S9 SE · L3+ · L7...
Antminer – SSH Connection Refused (Network)
Antminer S9, S9j, S9k, S9 SE, L3+, L7, T17, S17, S17 Pro,...
Antminer – Stratum V2 Connection Issue
Antminer S9, S17, S19, S19 Pro, S19j, S19j Pro, S19 XP, S19k...
Antminer – Undervolting Too Aggressive
Antminer S9, S9j, S9k, S17, S17 Pro, S17+, S19, S19 Pro, S19j,...
Antminer – Web Interface Not Loading
All Antminer models with a control-board HTTP server: S9, S9i, S9j, S9k,...
Antminer D9 – Temperature Too High
Antminer D9 (X11 / Dash miner, ~1.77 GH/s nameplate, ~1500 W wall...
Antminer KA3 – Temperature Too High
Antminer KA3 (all batches, stock firmware and common third-party builds)
Antminer L3+ – Hashboard Not Detected
Antminer L3+, L3++ (504 MH/s and 580 MH/s revisions); applies to the...
Antminer L3+ – Temperature Too High
Antminer L3+
Antminer L7 – Fan Speed Error
Antminer L7 (all revisions: 8.0 Gh/s, 8.3 Gh/s, 8.8 Gh/s, 9.05 Gh/s,...
Antminer L7 – Hashboard Not Detected
Antminer L7 (all revisions: 8.0 Gh/s, 8.3 Gh/s, 8.8 Gh/s, 9.05 Gh/s,...
Antminer L7 – Low Hashrate
Antminer L7 (all bins: 8.3, 8.5, 8.8, 9.05, 9.16, 9.3, 9.5 Gh/s)
Antminer L7 – Power Cable Overheating
Antminer L7, L7 9.3 Gh, L7 9.5 Gh, L7 9.16 Gh, L7...
Antminer L7 – Temperature Too High
L7 8.3 Gh/s · L7 8.5 Gh/s · L7 8.8 Gh/s ·...
Antminer L7 – Vibration Noise
Antminer L7 (all hashrate bins: 8.3 Gh, 8.5 Gh, 8.8 Gh, 9.05...
Antminer S17 – Fan Speed Error
Antminer S17, S17 Pro, S17+, S17e (and T17 chassis sharing the same...
Antminer S17 – Hashboard Not Detected
Antminer S17, S17 Pro, S17+, S17e
Antminer S17 – Low Hashrate
Antminer S17, S17 Pro, S17+, S17e
Antminer S17 – Temperature Too High
Antminer S17, S17 Pro, S17+, S17e
Antminer S19 – 110V Insufficient Power
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – Abnormal Fan Noise
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – ASIC Chip Temperature Imbalance
Antminer S19, S19 Pro, S19j Pro
Antminer S19 – Cannot Connect to Pool
All Antminer models -- S9, S9i, S9j, S9k, S17, S17 Pro, S17+,...
Antminer S19 – Control Board Not Booting
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19 XP Hydro, S19k...
Antminer S19 – Control Board Power Connector Damage
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – eMMC Failure
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – Fan Grinding Noise
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – Fan Speed Error
S19 · S19 Pro · S19j Pro · S19 XP · S19...
Antminer S19 – Filesystem Full Error
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19k Pro, S19...
Antminer S19 – Firmware Update Failed
Antminer S19 · S19 Pro · S19j · S19j Pro · S19...
Antminer S19 – Hashboard Initialization Failure
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – Hashboard Not Detected (0 ASIC)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S19 – Hashboard Voltage Error
Antminer S19, S19 Pro, S19j Pro (same root-cause pattern also affects S19...
Antminer S19 – High Hardware Error Rate
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – High Rejected Share Rate
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – Inlet/Outlet Temperature Differential Too High
Antminer S19, S19 Pro, S19j Pro, S19 XP, S21
Antminer S19 – Kernel Log Errors
Antminer S19 · S19 Pro · S19j · S19j Pro · S19...
Antminer S19 – Kernel Panic After OC
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19 XP Hydro,...
Antminer S19 – Low Hashrate (Missing ASIC Chips)
Antminer S19, S19 Pro, S19j, S19j Pro, S19 XP, S19k Pro
Antminer S19 – PSU Overcurrent Protection
Antminer S19, S19 Pro, S19j, S19j Pro, S19k Pro, S19a, S19a Pro...
Antminer S19 – SD Card Firmware Flash Not Working
S19 · S19 Pro · S19j · S19j Pro · S19 XP...
Antminer S19 – Temp Sensor Failure
Antminer S19, S19 Pro, S19j Pro, S19 XP
Antminer S19 – Temperature Too High (Temp1/Temp2 > 95°C)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro (3250 W...
Antminer S19 Hydro – Coolant Temperature Too High
Antminer S19 Hydro (~145 TH/s at 5365 W), S19 Pro Hydro (~184...
Antminer S19 XP – Hashboard Not Detected
Antminer S19 XP, Antminer S19 XP Hydro
Antminer S19 XP – PSU Overheating
Antminer S19 XP, Antminer S19 XP Hydro (APW12-platform edge cases)
Antminer S19 XP – Temperature Too High
Antminer S19 XP · S19 XP Hydro (air-cooled limits differ from hydro...
Antminer S19j Pro – Low Hashrate
Antminer S19j Pro (104 TH/s, 3,068 W, `240-Cb`), S19j Pro 100 TH/s...
Antminer S19k Pro – Hashboard Not Detected
Antminer S19k Pro (BHB56902 hashboard revision) — 115 TH/s and 120 TH/s...
Antminer S19k Pro – Temperature Too High
Antminer S19k Pro
Antminer S21 – ASIC Chip HW Errors
Antminer S21, S21 Pro, S21+, S21 Hydro, S21+ Hydro, S21 XP, T21
Antminer S21 – Control Board Not Booting
Antminer S21, S21 Pro, S21+, S21+ Hyd, S21 XP, S21 Hydro
Antminer S21 – Fan Speed Error
Antminer S21, S21 Pro, S21+, S21 Hydro, S21+ Hydro, S21 XP, T21
Antminer S21 – Firmware Compatibility Error
Antminer S21 · S21 Pro · S21+ · S21 Hydro · S21...
Antminer S21 – Hashboard Not Detected
Antminer S21, S21 Pro, S21+, S21+ Hyd, S21 XP, S21 Hydro
Antminer S21 – High-Pitched Whine
Antminer S21, S21 Pro, S21+, S21 Hydro, S21+ Hydro, S21 XP, T21
Antminer S21 – Low Hashrate
Antminer S21, S21 Pro, S21+, S21 Hydro, S21 XP (A3HB70501 hashboard)
Antminer S21 – Power Cable Melting
Antminer S21, S21 Pro, S21+, S21 XP, S21 Hydro, T21
Antminer S21 – PSU Overcurrent Protection
Antminer S21, S21 Pro (all bins) — stock APW21 / APW221-15 PSU...
Antminer S21 – Temperature Too High
Antminer S21, S21 Pro, S21 Hydro, S21+ variants
Antminer S9 – Control Board Not Booting
Antminer S9, S9i, S9j, S9k, S9 SE, T9+, R4 (BeagleBone-based and BHB42xxx...
Antminer S9 – Fan Bearing Failure
Antminer S9, S9i, S9j, S9k, S9 SE, S9 Space Heater editions
Antminer S9 – Fan Speed Error
Antminer S9, S9i, S9j, S9k, S9 SE
Antminer S9 – Firmware Downgrade Issues
S9 · S9i · S9j · S9k · S9 SE · T9+...
Antminer S9 – Hashboard Not Detected
Antminer S9, S9i, S9j, S9k, S9 SE
Antminer S9 – Low Hashrate
Antminer S9, S9i, S9j, S9k, S9 SE — any S9-class control board...
Antminer S9 – PSU Not Detected
Antminer S9, S9i, S9j, S9k, S9 SE — any S9-class control board...
Antminer S9 – PSU Voltage Drop
Antminer S9, S9i, S9j, S9k, S9 SE, S9 Space Heater conversions —...
Antminer S9 – Temperature Too High
Antminer S9, S9i, S9j, S9k, S9 SE
Antminer T19 – Fan Speed Error
Antminer T19 (84 TH/s and 88 TH/s production runs), T19 Hydro (limited...
Antminer T19 – Hashboard Not Detected
Antminer T19 (all hardware revisions, 84 TH/s and 88 TH/s SKUs)
Antminer T19 – Low Hashrate
Antminer T19, Antminer T19 Hydro (limited runs)
Antminer T19 – Temperature Too High
Antminer T19 (all hardware revisions, 84 TH/s and 88 TH/s SKUs). BM1398...
Antminer T21 – Fan Speed Error
Antminer T21 (190 TH/s, air-cooled chassis)
Antminer T21 – Hashboard Not Detected
Antminer T21
Antminer T21 – Low Hashrate
Antminer T21
Antminer T21 – Temperature Too High
Antminer T21
Antminer Z15 – Hashboard Not Detected
Antminer Z15, Z15 Pro, Z15e, Z15j
Antminer Z15 – Temperature Too High
Antminer Z15 · Z15 Pro · Z15e · Z15j (Equihash-144,5 / Zcash...
APW12 Red LED Fault and Diagnostic Codes
Bitmain APW12 (12V) PSU — paired with Antminer S19, S19 Pro, S19j...
APW3++ No 12V Output and Fan Not Spinning
Bitmain APW3, APW3+, APW3++ (1200W @ 110-120V / 1600W @ 200-240V). Host...
APW7 Low Line Voltage Standby Cycling Under 205V
Bitmain APW7 (1800W) — typically paired with Antminer S9, S9i, S9j, S9k,...
APW9 Intermittent Shutdown After Heat Soak
Bitmain APW9, APW9+ — paired with Antminer S17, S17 Pro, S17+, S17e,...
ASIC 220V vs 110V Power Derating Explained
All ASIC miners on dual-voltage PSUs — Bitmain APW3++, APW7, APW9, APW9+,...
ASIC Miner – API Not Responding
All ASIC miners - Antminer S9 / S9j / S9k / L3+...
ASIC Miner – Circuit Breaker Tripping
All ASIC miners on residential or light-commercial power: Antminer S9 / L3+...
ASIC Miner – Coil Whine from Hashboard
All ASIC and open-source mining hashboards with on-board DC-DC (buck) conversion —...
ASIC Miner – DHCP Failure
All ASIC miners — Antminer S9/S17/S19/S19 XP/S21 families, Whatsminer M30S/M50/M60, Avalon A12/A13,...
ASIC Miner – DNS Resolution Failed
All ASIC miners -- Antminer S9, S17, S19, S19 Pro, S19j, S19j...
ASIC Miner – Ethernet Port Hardware Failure
Antminer S9, T9, L3+, T17, S17, S17+, S17 Pro, T19, S19, S19...
ASIC Miner – Frequent Pool Disconnections
All ASIC miners -- Antminer S9, S17, S19, S19 Pro, S19j, S19j...
ASIC Miner – Mining Pool Authentication Failed
All ASIC miners — Antminer S9, S17, S19, S19 Pro, S19j, S19j...
ASIC Miner – Network Not Found / No IP
All ASIC miners with RJ45 — Antminer (S9, S17, S19/Pro/j/j Pro/XP, S19k...
ASIC Miner – Overclocking Instability
All Antminer models with overclock or autotune profiles: S9, S17, S19, S19...
ASIC Miner – PDU Overload
Any rack-mounted or bench PDU feeding Antminer S9, L3+, S17, S19, S19...
ASIC Miner – PSU Buzzing Noise
Any ASIC with external or integrated PSU: Antminer APW3++, APW7, APW9, APW9+,...
ASIC Miner – Thermal Paste Degradation
Every ASIC older than 18-24 months — Antminer S9 / S17 /...
ASIC Miner – Underpowered PSU Symptoms
Any ASIC miner whose PSU is undersized, miswired for 110/120V, aged, or...
ASIC Miner – VPN Interfering with Pool Connection
Antminer S9, S17, S19, S19 Pro, S19j Pro, S19 XP, S21; Whatsminer...
ASIC Miner – Web Interface Not Loading
Antminer S9 · S9j · S9k · L3+ · L7 · T17...
ASIC Miner – Wrong Firmware Version Flashed
Antminer S9 · S9j · S9k · L3+ · S17 / S17...
Avalon – AUC Controller Failure
Avalon A10xx, A1066, A1146, A1166, A1246, A1346, A1366, A1466, A15xx (any Avalon...
Avalon – AUC Controller Network Loss
Avalon 721, 741, 821, 841, 851, 921, 1026, 1047, 1066, 1146, 1166,...
Avalon – AUC USB Connection Lost
Avalon A721, A741, A761, A821, A841, A851, A911, A921, A1041, A1066, A1146,...
Avalon – Firmware Flash via AUC
All Avalon controllers that push MM firmware over the AUC3 USB-to-IIC bus:...
Avalon – PSU Incompatible Model
Avalon 721, 741, 761, 821, 841, 1026, 1047, 1066, 1066 Pro, 1146,...
Avalon 1166 – Fan Speed Error
Avalon 1166, Avalon 1166 Pro (cross-applicable diagnostic logic to A1066 and A1266;...
Avalon 1166 – Hashboard Communication Error
Avalon 1166, Avalon 1166 Pro, Avalon 1166 Pro S. Same failure mode...
Avalon 1166 – Hashboard Not Detected
Avalon 1166 (A3206 chip) | Avalon 1166 Pro | 1166 MaxSpeed variants
Avalon 1166 – Low Hashrate
Avalon 1166, Avalon 1166 Pro, Avalon 1166S — any A11-class chassis running...
Avalon 1166 Pro – 0 Hashboard Detected
Avalon 1166 Pro (75T / 78T / 81T and Pro-S variants). Same...
Avalon 1166 Pro – ASICCRC Error
Avalon 1166 Pro (68T, 72T, 75T, 78T, 81T SKUs)
Avalon 1166 Pro – BOOTBY 0x10 Reboot Loop
Avalon 1166 Pro — all SKUs (68T, 72T, 75T, 78T, 81T). Primary...
Avalon 1166 Pro – Fan Speed 0 RPM
Avalon 1166 Pro (A1166 Pro 68T / 72T / 75T / 78T...
Avalon 1246 – ASIC Chip Temperature Abnormal
Avalon 1246 (81T, 83T, 85T, 87T, 90T SKUs). Directly applicable to Avalon...
Avalon 1246 – ASICCRC Error
Avalon 1246 (78T, 81T, 83T, 87T, 90T SKUs)
Avalon 1246 – AUC Communication Error
Avalon 1246, Avalon 1246 Pro (cross-references 1166 Pro, 1066 Pro, A11/A12 series...
Avalon 1246 – AUC Overheating
Avalon A1246 (A3206 silicon); directly-applicable patterns for A1146, A1166, A1266, A1346, A1366,...
Avalon 1246 – Fan Buzzing
Avalon A1246 (A3206 silicon, ~360 chips across 3 MMs, ~90 TH/s nameplate)...
Avalon 1246 – Fan Speed Error
Avalon 1246 (all sub-revisions: 1246-83T, 1246-87T, 1246-90T)
Avalon 1246 – Firmware Flash Failure
Avalon A1246 (A3206 silicon); patterns cross-apply to A1146, A1166, A1266, A1346, A1366,...
Avalon 1246 – Hashboard Domain Voltage Abnormal
Avalon 1246 (all variants — 83 TH / 87 TH / 90...
Avalon 1246 – Hashboard Not Detected
Avalon 1246 (A3206M chip) | Avalon 1246 Pro | 1246 MaxSpeed bins
Avalon 1246 – LED Error Pattern
Avalon A1246 (A3206 silicon) — with cross-applicable LED logic for A1166, A1266,...
Avalon 1246 – Low Hashrate
Avalon A1246 (all production batches, A3206 silicon; cross-applicable to A1246I)
Avalon 1246 – Only 2 Hashboards Detected
Avalon 1246 (all variants: 83T, 85T, 87T, 90T). Same A3206 chip family,...
Avalon 1246 – PSU Communication Lost
Avalon 1246 (all SKUs, ~81-90 TH/s class). Same PSU family and AUC3...
Avalon 1246 – PSU Not Detected
Avalon 1246 (83T/85T/87T/90T/93T/96T); same signature observed on Avalon 1166/1166 Pro with matching...
Avalon 1246 – Reboot BOOTBY Code Diagnosis
Avalon 1246 — 87T, 88T, 90T SKUs · A3210 ASIC chips (114...
Avalon 1246 – Temperature Too High
Avalon 1246 (all sub-SKUs - 81T, 83T, 85T, 87T, 90T), Avalon 1166,...
Avalon 1266 – Fan Speed Error
Avalon 1266 (A1266 100 TH/s / 96 TH/s variants, 3,500 W, MM3-series...
Avalon 1266 – Hashboard Failure
Avalon 1266 (100 TH / ~3400W chassis). Same PSU family, same AUC3...
Avalon 1266 – Low Hashrate vs Nameplate
Avalon 1266 - any A12-class chassis running the Canaan A3206 ASIC.
Avalon 1346 – Fan Speed Error
Avalon 1346 (all sub-revisions — 104T, 107T, 110T, 113T, 116T, 120T, 126T...
Avalon 1346 – Hashboard Not Detected
Avalon 1346 (104 TH nameplate, A3218 silicon). Chassis shares control-board / PSU...
Avalon 1346 – Low Hashrate
Avalon A1346 (all production batches, including 104 / 107 / 110 /...
Avalon 1346 – Temperature Overheat Shutdown
AvalonMiner 1346 (A1346) - 104 TH/s nameplate, A3205 ASIC family, MM3 control...
Avalon 1366 – Fan Speed Error
Avalon 1366 (A1366 130T nameplate, 3,420 W, MM3v2 control board)
Avalon 1366 – Hashboard Not Detected
Avalon 1366 (standard 130T bin), Avalon 1366 MaxSpeed, and mixed-bin 1366 fleets....
Avalon 1366 – Low Hashrate vs Nameplate
Avalon A1366 (standard 130 TH/s bin) and A1366 MaxSpeed (higher-frequency bin up...
Avalon 1366 – Temperature Too High
AvalonMiner 1366 (A1366) - 130 TH/s nameplate, A3206 ASIC family, MM3v2 control...
Avalon 1446 – Fan Speed Error
Avalon 1446 (entry-tier A14, ~83 – 95 Th nominal performance bins; shares...
Avalon 1446 – Hashboard Not Detected
Avalon 1446 (A14-family entry-class chassis, nameplate ~150-165 TH/s depending on bin), Avalon...
Avalon 1446 – Low Hashrate
Avalon A1446 (all production SKUs, commonly sold as 130 / 135 /...
Avalon 1446 – Temperature Too High
AvalonMiner 1446 (A1446) - approx 118-128 TH/s nameplate depending on hardware revision,...
Avalon 1466 – Fan Speed Error
Avalon 1466 (A1466 150-170 TH/s nameplate, ~3,400-3,500 W, MM3v2-class control board)
Avalon 1466 – Hashboard Not Detected
Avalon 1466 (standard 150T bin) and Avalon 1466 Pro (~165T bin). Shares...
Avalon 1466 – Low Hashrate vs Nameplate
Avalon A1466 (all production batches, 150 TH/s nameplate at 3230 W ±10%)...
Avalon 1466 – Temperature Too High
AvalonMiner A1466 - approx 150 TH/s nameplate, A3207-class ASIC family (A14 generation),...
Avalon 1566 – Fan Speed Error
Avalon 1566 (A1566 185 TH/s nameplate, ~3,420 W wall draw, MM3v2-class control...
Avalon 1566 – Hashboard Not Detected
Avalon 1566 (standard ~185 TH/s bin), Avalon 1566 MaxSpeed variants, and mixed-bin...
Avalon 1566 – Low Hashrate vs Nameplate
Avalon A1566 (all production batches — nominal 185 TH/s SKU and batch-binned...
Avalon 1566 – Temperature Too High
AvalonMiner 1566 (A1566) - 185 TH/s nameplate, 3420 W wall draw, 18.5...
Avalon Series – BOOTBY Code Reference Guide
All Avalon series on MM-family firmware — A1166 Pro, A1246, A1266, A1346,...
Avalon Series – MM_STATUS Log Decoder
All Avalon series on MM-family firmware — A1166 Pro, A1246, A1266, A1346,...
Bitaxe – 12V PSU Connected to 5V Board (Permanent Damage)
Bitaxe Supra (BM1368, boards 401/402), Bitaxe Ultra (BM1366, board 204), Bitaxe Gamma...
Bitaxe – ASIC Chip Not Detected / System Info Shows None
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370 boards 601/602), Bitaxe...
Bitaxe – AxeOS Connection Issues
All Bitaxe models: Supra (board 401), Ultra (202/204/205/207), Gamma / Gamma Turbo...
Bitaxe – AxeOS Dashboard Unreachable / Blank Web Page
Bitaxe Supra, Ultra, Gamma, Gamma Turbo / GT, Hex, UltraHex, Max (all...
Bitaxe – AxeOS Web UI Freezes During Mining Session
Bitaxe Supra, Ultra, Gamma, Gamma Turbo / GT, Hex (all ESP-Miner /...
Bitaxe – Barrel Jack Loose / Intermittent Power Flicker
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366 boards 202/204/205/207), Bitaxe Gamma (BM1370 boards...
Bitaxe – bitaxe.local Not Found on Windows / Android
Bitaxe Supra, Ultra, Gamma, Gamma Turbo / GT, Hex, UltraHex, Max —...
Bitaxe – BM1366 Not Responding After Power Surge
Bitaxe Ultra (BM1366, boards 202/204/205/207), Bitaxe Hex v303/v304 (6x BM1366), UltraHex, any...
Bitaxe – Bricked After Firmware Flash (Cannot Enter Bootloader)
Bitaxe Max, Bitaxe Ultra, Bitaxe Supra, Bitaxe Gamma, Bitaxe Gamma Turbo (GT),...
Bitaxe – Device Stays on Fallback Pool / Won’t Return to Primary
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe GT, Bitaxe Hex (any AxeOS...
Bitaxe – DNS Resolution Failed for Pool Hostname
Bitaxe Supra, Ultra, Gamma, Gamma Turbo / GT, Hex, Max (every ESP32-S3...
Bitaxe – ESP32 Brownout Detector Triggered (Reset Loop)
All Bitaxe variants on the ESP32-S3-WROOM family: Bitaxe Max (BM1397), Ultra (BM1366...
Bitaxe – ESP32 Crash Loop / Reboot Loop
All Bitaxe models (ESP32-S3 based): Max (BM1397), Ultra (BM1366 boards 202/204/205/207), Supra...
Bitaxe – Extranonce Subscribe Mismatch / Invalid Nonce Range
Bitaxe Supra, Ultra, Gamma, Gamma Turbo (GT), Hex — all variants running...
Bitaxe – Fan Motor Jammed / Hums but No Rotation
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma 601/602, Bitaxe GT, Bitaxe Hex (any...
Bitaxe – Fan Not Spinning / PWM Stuck at Zero
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma 601/602, Bitaxe GT, Bitaxe Hex (any...
Bitaxe – Flatline of Death (Hashrate Frozen / No New Shares)
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370), Bitaxe GT (dual...
Bitaxe – i2c_master_transmit_receive Handle Not Initialized
Bitaxe Gamma 601, Gamma 602, Supra, Ultra (all Bitaxe variants with EMC2101...
Bitaxe – Invalid Worker: Lightning Address / Username Pasted Instead of BTC
Bitaxe (all): Supra, Ultra, Gamma, GT, Hex, Max. Same pattern applies to...
Bitaxe – Not Hashing / Zero Hashrate
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe Gamma Turbo (GT), Bitaxe Hex,...
Bitaxe – NVS Corruption / Manufacturing Data Missing (2.0.0+)
Bitaxe Supra (board 401, BM1368), Bitaxe Ultra (boards 202/204/205/207, BM1366), Bitaxe Gamma...
Bitaxe – OLED / LCD Display Blank on Boot
Bitaxe Supra, Ultra, Gamma 601, Gamma 602 (any Bitaxe variant with a...
Bitaxe – OTA Update Failed Mid-Transfer / Partition Switch Error
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe Gamma Turbo (GT), Bitaxe Hex...
Bitaxe – Overheating
Bitaxe Max, Ultra, Supra, Gamma, Gamma 601, Gamma 602, Gamma Turbo (GT),...
Bitaxe – Overheats Despite Cooling (Thermal Paste Degraded)
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma 601/602 (BM1370), Bitaxe Hex...
Bitaxe – Pool Rejected Shares High Rate
Bitaxe Max (BM1397), Ultra (BM1366), Supra (BM1368), Gamma (BM1370), Gamma Turbo /...
Bitaxe – Power Fault / TPS546 Out of Regulation Window
Bitaxe Supra (BM1397), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370), Bitaxe Hex (6x...
Bitaxe – PSU Undersized / Insufficient Wattage for Overclock
Bitaxe Supra (BM1368, ~15W steady at 5V), Bitaxe Ultra (BM1366, ~15W steady...
Bitaxe – Reverse Polarity Barrel Jack Damage
Bitaxe Supra (BM1368, boards 401/402), Bitaxe Ultra (BM1366, board 204), Bitaxe Gamma...
Bitaxe – Serial RX Invalid 11 Error After Hours of Mining
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370), Bitaxe GT (BM1370),...
Bitaxe – Settings Lost After Firmware Update (NVS Wipe)
Bitaxe Supra, Ultra, Gamma, Gamma Turbo / GT, Hex, UltraHex, Max (any...
Bitaxe – Stale Share Flood / High Reject Rate
Bitaxe Supra, Ultra, Gamma, Gamma Turbo (GT), Hex — every BM136x variant...
Bitaxe – Stratum API Stuck After WiFi Timeout
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370), Bitaxe GT (dual...
Bitaxe – Stratum ConfigurationOutOfOrder (Braiins / BOSminer)
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe Gamma Turbo (GT), Bitaxe Hex,...
Bitaxe – Stratum mining.authorize Failed / Wrong Worker Name
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe GT, Bitaxe Hex, Bitaxe Max;...
Bitaxe – Stratum mining.subscribe Failed / Pool Rejects Handshake
Bitaxe Supra, Ultra, Gamma, Gamma Turbo (GT), Hex, Max — all variants...
Bitaxe – Stuck in Boot Loop / Rapid LED Cycling
All Bitaxe variants on the ESP32-S3-WROOM family: Bitaxe Max (BM1397), Ultra (BM1366...
Bitaxe – Stuck in Recovery / Self-Test Never Completes
Bitaxe Supra (BM1368 rev 401), Ultra (BM1366 boards 202/204/205/207), Gamma (BM1370 boards...
Bitaxe – Stuck in WiFi Config AP Mode / Won’t Join Network
All Bitaxe models: Supra (board 401), Ultra (202/204/205/207), Gamma / Gamma Turbo...
Bitaxe – Temperature Sensor Reads -1.0°C (I2C Fault)
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370) — every variant...
Bitaxe – Thermal Shutdown at 75C / Self-Protect Mode
Bitaxe Supra (BM1368), Bitaxe Ultra (BM1366), Bitaxe Gamma (BM1370 boards 601/602), Bitaxe...
Bitaxe – Undervoltage / VIN Below 4.7V Under Load
Bitaxe Supra (board 401, BM1368), Bitaxe Ultra (boards 202/204/205/207, BM1366), Bitaxe Gamma...
Bitaxe – WiFi Won’t Connect (5GHz Network / ESP32 2.4GHz Only)
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe GT, Bitaxe Hex, Bitaxe Max...
Bitaxe – Wrong Firmware .bin Flashed for Chip (1366 vs 1370)
Bitaxe Max (BM1397), Bitaxe Ultra (BM1366, boards 201/202/204/205/207), Bitaxe Supra (BM1368, rev...
Bitaxe Gamma – TPS546 VCORE Init Failed / Device ID Mismatch
Bitaxe Gamma 601, Bitaxe Gamma 602, Bitaxe Gamma Turbo (GT, dual BM1370)
Bitaxe Gamma – Zero Hashrate Pulling Only 5W (Warm Restart Fails)
Bitaxe Gamma (board 601, 602), Bitaxe Gamma Turbo / GT (board 800,...
Bitaxe Gamma Barrel Jack Undervolt Boot Loop
Bitaxe Gamma (BM1370 single-chip, boards 601 / 602 / 600-ESP-MON16) primary. Reproduces...
Bitaxe GT – XT30 Connector Loose
Bitaxe Gamma Turbo (GT), Bitaxe Hex v303/v304, Bitaxe UltraHex, NerdQAxe++ (shared XT30PW...
Bitaxe Hex – 12V Power Supply Not Compatible
Bitaxe Hex v303, Bitaxe Hex v304, UltraHex, Bitaxe GT (related 12V family),...
Bitaxe Hex – One ASIC Dead / Only 5 of 6 Chips Hashing
Bitaxe Hex v303, Bitaxe Hex v304 (6x BM1368 daisy-chain topology); symptom logic...
Bitaxe Hex – XT30 12V Rail Droop Under Load
Bitaxe Hex v303, Bitaxe Hex v304, UltraHex (community variants with stock 6x...
Bitaxe USB-C PD Trigger Negotiation Failure
Bitaxe Supra (BM1368, 5V barrel jack), Bitaxe Ultra (BM1366, 5V barrel jack),...
Dielectric Breakdown — Short Event in Immersion Tank
Any miner deployed in a single-phase dielectric immersion tank — Antminer S19/S19j/S19...
Goldshell – Chip Init Failed on Startup
KD-BOX - KD-BOX Pro - KD-BOX II - KD5 - KD6 -...
Goldshell – Control Board Failure (No Web UI Response)
KD5 - KD6 - KD-MAX - KD6 SE - LT5 - LT5...
Goldshell – CPBO Failed to Startup Error
KD-BOX - KD-BOX Pro - KD-BOX II - HS-BOX - ST-BOX -...
Goldshell – Dashboard Flipping Between 0 H/s and Pool Error
KD-BOX Pro · KD-BOX II · LT5 · LT5 Pro · LT6...
Goldshell – Failed to Connect to Mining Pool
All Goldshell models — KD-BOX, KD-BOX Pro, KD-BOX II, KD5, KD6, KD-MAX,...
Goldshell – Fan RPM Error / Loud Bearing Noise
Goldshell KD5, KD6, KD-MAX, LT5, LT5 Pro, LT6, LT-LITE, HS5, CK5, CK6,...
Goldshell – Firmware Bricked (Red & Green LEDs Stuck)
KD-BOX - KD-BOX Pro - KD-BOX II - Mini-DOGE - Mini-DOGE II...
Goldshell – Firmware Update Fails / Stuck at X%
Every Goldshell BOX-series miner — KD-BOX, KD-BOX Pro, KD-BOX II, KD5, KD6,...
Goldshell – IP Address Not Found / find.goldshell.com
entire Goldshell lineup — KD-BOX / KD-BOX Pro / KD-BOX II, HS-BOX...
Goldshell – Pool-Hijack Malware / Port-Forward Botware
KD-BOX - KD-BOX Pro - KD-BOX II - HS-BOX - HS3 -...
Goldshell – PSU Unexpected Shutdown / Brownout
Goldshell internal-PSU lineup: KD5, KD6, KD-MAX, LT5, LT5 Pro, LT6, CK5, CK6,...
Goldshell – Random Crashes / Reboots Every Few Days
KD-BOX - KD-BOX Pro - KD-BOX II - KD5 - KD6 -...
Goldshell – SD Card Firmware Recovery Flash Guide
Goldshell Mini-DOGE I/II/III+, KD-BOX, KD-BOX Pro, KD-BOX II, HS-BOX, ST-BOX, CK-BOX, KA-BOX,...
Goldshell – WiFi Upgrade Corrupts Firmware (Use Ethernet)
KD-BOX, KD-BOX Pro, KD-BOX II, Mini-DOGE, Mini-DOGE II, Mini-DOGE III+, HS-BOX, ST-BOX,...
Goldshell CK6 – Hashboard Hashrate Below 80%
Goldshell CK6, CK5, CK-BOX
Goldshell HS5 / KA-BOX – Persistent High Temperature
Goldshell HS5 - HS-BOX - KA-BOX - KA-BOX Pro
Goldshell KD-BOX – Not Hashing / Zero Hashrate
Goldshell KD-BOX, KD-BOX Pro, KD-BOX II
Goldshell KD-BOX Pro – Not Hashing After Setup
Goldshell KD-BOX Pro (adjacent symptoms on KD-BOX II)
Goldshell KD5 / KD6 – Overheating / Thermal Shutdown
Goldshell KD5 (18 TH/s Kadena, ~2,250 W) · KD6 (26.3 TH/s, ~2,630...
Goldshell LT5 / LT5 Pro – Hashboard Offline or Dead
Goldshell LT5 (2.05 GH/s scrypt, 2,080 W) · LT5 Pro (2.45 GH/s...
Goldshell Mini-DOGE – Red Light / Failed to Startup
Goldshell Mini-DOGE (original, LTC/DOGE merged miner, 185 MH/s scrypt) · Mini-DOGE II...
HP DPS-1200FB Breakout Board Voltage Sense Pin Miswire
HP DPS-1200FB, DPS-1200FB-1A, DPS-1200FBA, DPS-1200QB, DPS-750RB-A and HSTNS-PD11 / 437572-B21 server PSUs...
Immersion Cooled Miner – Fluid Temperature Too High
Any immersion-cooled ASIC miner — Antminer S19 / S19j Pro / S19...
Immersion Cooling Pump Failure Creates Hashboard Hotspot
Tank circulator pumps in single-phase immersion systems (Iwaki MD/MX, March, Liquidstack ChassisTank...
Immersion Cooling Silicone Thermal Pad Oil Bleed
Antminer S19 / S19 Pro / S19j Pro / S19 XP /...
Innosilicon – Firmware Recovery Mode
Innosilicon T2T, T2Th+, T2Ti, T3+, T3H+, A10, A10 Pro, A11, A11 Pro...
Innosilicon A10 Pro – Fan Error
Innosilicon A10 Pro 500 MH/s · A10 Pro 720 MH/s · A10...
Innosilicon A10 Pro – Low Hashrate
Innosilicon A10 Pro 500 MH/s, A10 Pro 720 MH/s, A10 Pro+ 720...
Innosilicon T2T – Hashboard Not Detected
Innosilicon T2T (T2T-24T, T2T-25T, T2T-26T, T2T-28T, T2T-30T, T2T-32T), T2Turbo / T2Turbo+ retrofit...
Innosilicon T2T – Network Not Found
Innosilicon T2T (including T2T-24T, T2T-28T, T2T-30T, T2T-32T sub-variants)
Innosilicon T2T – PSU Compatibility
Innosilicon T2T (T2T-24T, T2T-25T, T2T-26T, T2T-28T, T2T-30T, T2T-32T), T2Turbo / T2Turbo+ retrofit...
Innosilicon T3+ – Control Board Failure
Innosilicon T3+, T3+ Pro, T3+ 57T, and related G19/G29-generation T-series chassis sharing...
Innosilicon T3+ – PSU Compatibility Issue
Innosilicon T3+ (T3+ 50TH, T3+ 52TH, T3+ 57TH); T3H+ shares PSU wiring...
Innosilicon T3+ – Temperature Too High
Innosilicon T3+ (T3+ 50TH, T3+ 52TH, T3+ 57TH), T3H+
mining.authorize Invalid Credentials — Pool-Side Reject
All BTC SHA-256 ASICs (Antminer S9/S17/S19/S19 XP/S21 series, Whatsminer M30S/M50S/M60S series, Avalon...
mining.subscribe Timeout — Pool Unreachable Checklist
All ASIC miners (Antminer, Whatsminer, Avalon, Innosilicon, Goldshell, Iceriver, Volcminer) and all...
NerdAxe – BM1366 vs BM1368 Firmware Mismatch
NerdAxe 500G (BM1366 x1), NerdAxe community / experimental variants running BM1368 silicon,...
NerdAxe – Firmware Update Issues
NerdAxe, NerdAxe 500G, NerdNOS, ESP-Miner-NerdAxe forks (BM1366/BM1368/BM1370)
NerdAxe – Stuck Falling Back to AP Mode
NerdAxe (BM1366 + ESP32-S3). Applies to all NerdAxe board revisions running the...
NerdMiner – Boot Loop After Web Tool Flash
NerdMiner v2 (ESP32 all variants) - LILYGO T-Dongle-S3 - LILYGO TTGO T-Display...
NerdMiner – Configuration Mode Fails on ESP32-WROOM-32
NerdMiner v2 flashed to ESP32-WROOM-32 / ESP32-Devkit1 targets. Includes bare `ESP32-WROOM-32` modules,...
NerdMiner – Display Black Screen Wrong TFT Pinout
LILYGO TTGO T-Display (ST7789 135x240), LILYGO T-Display-S3 (ESP32-S3 ST7789 170x320), ESP32-2432S028R Cheap...
Nerdminer – Display Not Working
NerdMiner v2 (LILYGO T-Display-S3, LILYGO T-Dongle-S3, TTGO T-Display, ESP32-WROOM-32 + SSD1306 OLED,...
NerdMiner – NerdMinerAP Not Visible After Setup
NerdMiner v2 on all supported ESP32 board variants: ESP32-WROOM-32 / DevKit1, LILYGO...
NerdMiner – Taproot bc1p Address Rejected by Pool
NerdMiner v2 (LilyGo T-Display-S3, LilyGo T-Dongle-S3, ESP32-WROOM-32, ESP32-S3 reference boards) — every...
NerdNOS – Firmware Flash Incompatible Hardware
NerdNOS flashed onto Bitaxe Ultra (201/202/204/205/207, BM1366), Bitaxe Supra (401, BM1368), Bitaxe...
NerdOctaxe – 200W+ PSU Undersized Shutdown
NerdOctaxe Gamma, NerdOctaxe Titan, NerdOctaxe rev 3.1 (any 8x BM1370 variant on...
NerdOctaxe – Thermalright AXP90 Cooler Loose
NerdOctaxe Gamma (dual Thermalright AXP90-X53 cooler revision)
NerdOctaxe – Uneven Hashrate Across 8 Chips
NerdOctaxe, NerdOctaxe Gamma (8x BM1370 configuration)
NerdQAxe – 0.0 GH/s With WiFi Connected
NerdQAxe (4x BM1370, ~1.2-1.8 TH/s class), NerdQAxe++ (4x BM1370, ~4.8 TH/s class),...
NerdQAxe – Bricked After OTA Firmware Update
NerdQAxe, NerdQAxe+, NerdQAxe++, NerdQAxe++ Hydro
NerdQAxe – Low Hashrate on One Chip
NerdQAxe++, NerdQAxe+, NerdQAxe (4x BM1368, shufps ESP-Miner-NerdQAxePlus firmware fork)
NerdQAxe – Overheat Mode at 75C Shutdown
NerdQAxe, NerdQAxe++, NerdQAxe++ Hydro (firmware esp-miner-nerdqaxeplus and esp-miner-nerdqaxeplus2)
NerdQAxe++ – PSU Error Guru Meditation #0000015
NerdQAxe, NerdQAxe+, NerdQAxe++ (rev 4, rev 6, rev 6.1), NerdQAxe++ Hydro
NerdQAxe++ – Undersized 12V PSU / XT30 Amp Fault
NerdQAxe, NerdQAxe++, NerdQAxe++ Hydro (any variant fed through XT30 12V input)
NerdQAxe++ Hydro – Pump Not Circulating Coolant
NerdQAxe++ Hydro (BM1370 x4, water-block edition); any community NerdQAxe build running a...
O-Ring Gasket Swelling in Hydrocarbon Dielectric Fluid
Single-phase immersion-cooled mining tanks of any chassis brand (Antminer, Whatsminer, Avalon, etc....
PiAxe – BM1366 Serial UART Communication Error
PiAxe (Raspberry Pi + single BM1366 ASIC) on Pi 2 / Pi...
PiAxe – Pyminer Stratum Connection Interrupted
PiAxe (Raspberry Pi Zero 2 W / 3 / 4 / 5...
Public Pool Miner Not Registering on Umbrel Node
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe GT, Bitaxe Hex, Bitaxe Max;...
Server PSU Breakout Burnt Wire — 2-Hot 3-Ground Rule
HP DPS-1200/DPS-1600/DPS-2400 server PSUs; Dell N750P / D750E / Z1100P; Delta DPS-1200/DPS-2000;...
Solo Block Found but Not Credited — Verification Checklist
Open-source / solo-pool miners: Bitaxe (Supra, Ultra, Gamma, GT, Hex, Max), NerdMiner,...
Solo CKPool vs Public Pool Stratum Differences
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe GT, Bitaxe Hex, Bitaxe Max,...
Solo Mining Shows Zero Shares for Hours — Is It Broken?
Bitaxe Supra, Bitaxe Ultra, Bitaxe Gamma, Bitaxe GT, Bitaxe Hex, Bitaxe Max;...
Solo Wallet Address Mismatch — Block Reward Lost
Every solo miner pointed at an address-authenticated pool: Bitaxe (Supra, Ultra, Gamma,...
Stale Shares from High-Latency Pool Connection
All ASIC and open-source miners that connect to a remote stratum pool:...
Stratum Connection Failed — Cross-Miner Troubleshooting
All Antminer (S9 / S17 / S19 / S21 / L7 /...
Stratum V1 vs V2 Protocol Mismatch — Miner Won’t Connect
All ASIC and open-source miners running Braiins OS+, DCENT_OS, LuxOS, Vnish, stock...
Whatsminer – Bootloader Corrupt SD Card Recovery
Whatsminer M20S, M21S, M30, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S,...
Whatsminer – Cannot Access Web Interface After Reset
Whatsminer M20, M21, M30S, M30S+, M30S++, M31S, M50, M50S, M50S+, M50S++, M53,...
Whatsminer – Factory Reset via Button
Whatsminer M20, M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M50, M50S, M50S+,...
Whatsminer – Firmware Update via MinerTool
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M32, M50S, M50S+, M50S++, M53,...
Whatsminer – LED Status Code Reference
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M50, M50S, M50S+, M50S++,...
Whatsminer – MinerTool Connection Timeout
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M50, M50S, M50S+, M50S++, M53,...
Whatsminer – MinerTool Diagnostic Codes
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M50, M50S, M50S+, M50S++,...
Whatsminer – Network Configuration Reset
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M50, M50S, M50S+, M50S++, M53,...
Whatsminer Error 110 – Fanin Detect Speed Error
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+,...
Whatsminer Error 111 – Fanout Detect Speed Error
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+,...
Whatsminer Error 120 / 121 – Fan Speed Below 2000 RPM
All air-cooled MicroBT Whatsminer models running BTMiner firmware: M20S, M21S, M30S, M30S+,...
Whatsminer Error 130 / 131 – Fan Speed Below 3000 RPM
Whatsminer M30S++, M50S/M50S+/M50S++, M53S+, M56S, M60/M60S/M60S+, M63/M63S+, M66/M66S — the higher-tier BTMiner...
Whatsminer Error 200 – Power Probing Error No Power Found
Whatsminer M20S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+, M50S++,...
Whatsminer Error 2010 – All Pools Disabled
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M32, M33, M50, M50S,...
Whatsminer Error 2020-2022 – Stratum Pool Connection Failed
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+,...
Whatsminer Error 2310-2350 – Low Hash Rate Warning
M20S · M21S · M30S · M30S+ · M30S++ · M31S ·...
Whatsminer Error 233-238 – PSU Output Protection Triggered
Whatsminer air-cooled M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+, M50S++,...
Whatsminer Error 300 – Hashboard SM0 Temperature Sensor Failure
Whatsminer M20S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+, M60...
Whatsminer Error 301 – Hashboard SM1 Temperature Sensor Failure
All three-hashboard MicroBT air-cooled generations: Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S,...
Whatsminer Error 302 – Hashboard SM2 Temperature Sensor Failure
Whatsminer M20S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+, M50S++,...
Whatsminer Error 350-352 – Hashboard High Temperature Protection
Whatsminer M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+, M50S++, M60,...
Whatsminer Error 5070-5072 – Water Velocity Abnormal
Whatsminer M30S++ Hydro · M33S+ · M33S++ · M53 · M53S ·...
Whatsminer Error 530-532 – Hashboard Not Found
Whatsminer M20S, M30S, M30S+, M30S++, M31S, M32, M50, M50S, M50S+, M50S++, M60,...
Whatsminer Error 540-542 – Chip ID Read Failure
Whatsminer M20S, M30S, M30S+, M30S++, M31S, M32, M50, M50S, M50S+, M50S++, M53,...
Whatsminer Error 550-552 – Bad ASIC Chips Detected
Whatsminer M20S, M21S, M30S, M30S+, M30S++, M31S, M31S+, M32, M50, M50S, M50S+,...
Whatsminer Error 600 – Environment Temperature Too High
All Whatsminer models running BTMiner firmware with the Error 600 fault map:...
Whatsminer Error 800-802 – Firmware Checksum Error
Whatsminer M20S · M21S · M30S / M30S+ / M30S++ · M31S...
Whatsminer Error 810 / 820 – Wrong Firmware Water vs Air
M33 · M53 · M53S · M56 · M56S · M63 ·...
Whatsminer Hydro – Water Leak Alarm Trip
Whatsminer M33S+, M33S++, M53, M53S, M53S+, M53S++, M63, M63S, M63S+, M64 Hydro
Whatsminer M30S – Control Board Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – Environmental Sensor Error
Whatsminer M30S, M30S+, M30S++ (M30V1 / M30V2 / M30V3 hardware revisions; button-board...
Whatsminer M30S – Fan Speed Error
Whatsminer M30S, M30S+, M30S++ (same 4x 12V 6-wire 12038 axial fan chassis)....
Whatsminer M30S – Firmware Recovery Mode
Whatsminer M30S, M30S+, M30S++ (BTminer families 20201222.x through 20251209.x)
Whatsminer M30S – Hashboard Not Detected
Whatsminer M30S, M30S+, M30S++ (custom MicroBT silicon — 3 × 105 chips...
Whatsminer M30S – Hashrate Fluctuation
Whatsminer M30S, M30S+, M30S++ (M30V10 / M30V20 / M30V30 hardware revisions)
Whatsminer M30S – Internal PSU Board Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – LED Fast Red Blink
Whatsminer M30S · M30S+ · M30S++ (M30V1 / M30V2 / M30V3 hardware...
Whatsminer M30S – LED Slow Red Blink
M30S · M30S+ · M30S++ (same control-board LED schema, firmware-dependent on build...
Whatsminer M30S – Low Hashrate
Whatsminer M30S, M30S+, M30S++ (BM1375 / BM1398-adjacent custom MicroBT silicon — M30S...
Whatsminer M30S – MinerTool Cannot Connect
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – Power Supply Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – Rattling Noise
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – Share Rejection Spike
Whatsminer M30S, M30S+, M30S++ (M30V1/M30V2/M30V3 hardware revisions)
Whatsminer M30S – Temperature Too High
Whatsminer M30S, M30S+, M30S++ (M30V1 / M30V2 / M30V3 hardware revisions -...
Whatsminer M30S – Water Cooling Leak Detection
Whatsminer M30S++ Hydro, M33S++, M53, M53S, M56, M56S (hydro variants), and any...
Whatsminer M50S – Control Board Not Responding
Whatsminer M50S, M50S+, M50S++
Whatsminer M50S – Fan Speed Error
Whatsminer M50S, M50S+, M50S++
Whatsminer M50S – Grinding Fan Noise
Whatsminer M50S, M50S+, M50S++ (procedure overlaps with M30S, M53S, M56S, M60S —...
Whatsminer M50S – Hashboard Error via MinerTool
M50S (primary) · M50S+ · M50S++ · related procedures apply to M50,...
Whatsminer M50S – Hashboard Not Detected
Whatsminer M50S (applicable to M50, M50S+, M50S++ with minor voltage deltas)
Whatsminer M50S – Low Hashrate
Whatsminer M50S · M50S+ · M50S++ (SHA-256 air-cooled lineup, BM1398-class MicroBT silicon...
Whatsminer M50S – MinerTool Firmware Update Failed
M50S (primary) · M50 · M50S+ · M50S++ — procedures carry to...
Whatsminer M50S – Overclocking Instability
Whatsminer M50S, M50S+, M50S++
Whatsminer M50S – Power Limit Triggered
Whatsminer M50S, M50S+, M50S++
Whatsminer M50S – Power Supply Failure
Whatsminer M50S, M50S+, M50S++
Whatsminer M50S – Temperature Too High
Whatsminer M50S, M50S+, M50S++
Whatsminer M56S – Temperature Too High
Whatsminer M56S (hydro-cooled)
Whatsminer M60S – Chip Bin Mismatch
Whatsminer M60S, M60S+, M60S++
Whatsminer M60S – Control Board Boot Loop
Whatsminer M60S, M60S+, M60S++
Whatsminer M60S – Fan Speed Error
Whatsminer M60S, M60S+, M60S++ (same SM3-generation chassis and 4-fan PWM layout)
Whatsminer M60S – Firmware Rollback Failed
Whatsminer M60S, M60S+, M60S++
Whatsminer M60S – Firmware Signature Verification Failed
Whatsminer M60S, M60S+, M60S++
Whatsminer M60S – Hashboard Not Detected
Whatsminer M60S, M60S+, M60S++ (same SM3-generation hashboard architecture)
Whatsminer M60S – Power Supply Failure
Whatsminer M60S, M60S+, M60S++
Whatsminer M60S – PSU Efficiency Drop
Whatsminer M60S, M60S+, M60S++
Whatsminer M60S – Temperature Too High
Whatsminer M60S, M60, M60S+, M60S++ (shared control-board thermal pipeline)
Whatsminer P21 PSU No Output — Loose Copper Bar Screws
Whatsminer P21 PSU and shared-hardware-revision P21+ units, deployed on Whatsminer M30S, M30S+,...
Whatsminer P221B Hex Fault Code Decoder (0x0040–0x2000)
Whatsminer P221B PSU — `12V/265A` main + `12V/15A` aux, `220–240 V AC`...
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