One ODrive S1 does not work

Support
1

I recently bought two S1. One works fine, but the second one’s motor never rotates during any call.

S1 serial: 144157578035

Power input: ~36.7 V, healthy bus shown in logs

Symptom: motor never rotates during any cal; both MOTOR_CALIBRATION and Hall cal steps complete instantly without motion

Key logs:

disarm_reason: ODriveError.CALIBRATION_ERROR

procedure_result: ProcedureResult.PHASE_RESISTANCE_OUT_OF_RANGE

Hall test (06b): repeated hall_state changes (1–6) when turning by hand → encoder wiring OK

Swap test: same motor + cable spin normally on S1 144157576504; fail the same way on 144157578035

Tried higher cal drive: calibration_current=20 A, resistance_calib_max_voltage=8 V → no change

Open-loop/lock-in unavailable on this FW; torque/current probes had no effect (axis stays NOT_CALIBRATED)

2

Hi! What specific motor are you using? As well, what’s your calibration current and voltage (config.motor.calibration_current and config.motor.resistance_calib_max_voltage, if using ODrivetool). As well, could you post some pictures of the top and bottom of the board?