Fix guides
Get it running again
Every guide cites where its fixes come from — official manuals, manufacturer support pages, and documented owner reports. No guesswork, no AI-imagined repair steps. Robot not covered yet? The library grows weekly.
Commercial (multi-brand)
Gausium
Pudu Robotics
Unitree
Unitree app crashes right after a firmware update? It's the service toggles
A firmware update quietly disables OTA and STA-T services on the Go2 — the documented cause of instant app crashes on connect, and the re-enable path.
Unitree G1 status lights decoded: what each LED color means
The G1 has no numeric error codes — its body LED is the diagnostic. Every documented color state, plus where to find the actual alarm data.
Unitree G1 won't charge: the official battery rules
The G1 battery and charger manual's actual requirements — the four rules that cause most charging failures, and when a battery is genuinely dead.
Unitree Go2 app won't connect: AP, Wi-Fi, 4G, and Bluetooth fixes
The official connection troubleshooting tree for the Unitree Go app — by connection mode — plus the remote-control conflict that looks like a connection bug.
Unitree Go2 standing crooked or falling over: when to recalibrate (and when not to)
The official joint-calibration path for abnormal posture on the Go2 — and the manual's explicit warning against casual recalibration.
Unitree Go2 LiDAR stopped spinning after a bump
The official recovery sequence when the Go2's head LiDAR stops rotating after physical contact.
Don't press the Unitree Go2 reset button (seriously)
Unitree support has told an owner the Go2's rear reset button 'destroys the motherboard (sometimes)' — here's the documented case, what factory reset actually looks like, and what to do instead.
Unitree Go2 won't stand up after power-on (slow red flash)
The official power-on failure procedure for the Go2: placement rules, the LED signal that confirms it, and when it's a hardware fault.
Who fixes a Unitree in 2026? US repair options, deposits, and warranty traps
The real service landscape for G1/Go2 owners: official warranty terms, RoboStore's US in-house repair (and its deposits), third-party shops, and published component pricing.
iRobot Roomba
Roomba charging errors 1, 3, 5, 6, 7, 8: what each one means
The full charging-error family decoded — from a missed pull tab to a battery that needs replacing — with the fixes in the order worth trying.
Who fixes a Roomba in 2026? Every real option, priced
Post-bankruptcy Roomba repair mapped: what iRobot still covers under Picea ownership, the national mail-in shops, local options, and DIY — with published prices.