Ninebot ESx/Max Error Codes

Code	Description	Additional information	Severity	Level
10	Communication Failure between Dashboard and ESC.	Check the connection between dashboard and ESC. ESC is possibly soft-bricked; try to flash ESC with ST-Link (ESx, Max)	System error	3
11	Motor phase A current out of range		Hardware error	3
12	Motor phase B current out of range		Hardware error	3
13	Motor phase C current out of range		Hardware error	3
14	Throttle handle position out of range	Throttle might be stuck, faulty or disconnected	Hardware error	3
15	Brake handle position out of range	Brake handle might be stuck, faulty or disconnected	Hardware error	3
16	Internal Battery change MOS abnormal		Hardware error	3
17	External battery change MOS abnormal		Hardware error	3
18	Motor Hall sensors stuck at 0/1	Check 2×4 connector between ESC and motor; attempt a fix	Hardware error	3
19	Internal battery voltage out of range		Hardware error	3
20	External battery voltage out of range		Hardware error	3
21	No communication with internal BMS	Check data connector between internal battery and ESC, replace the battery	Battery mod warning	2
22	Internal BMS config invalid	Replace internal BMS or battery; attempt a fix, or, flash CFW with error raising disabled.	System warning	1
23	Internal BMS not activated (has default S/N)	Replace internal BMS or battery; attempt a fix, or, flash CFW with error raising disabled.	System warning	1
24	Supply voltage out of range		Battery mod warning	2
25	Communication failure during ESC fimware update	Hard-reset scooter	System error	3
26	Flash save error	Try to flash ESC with ST-Link (ESx, Max), replace ESC	System error	3
27	ESC config invalid (CPUID register might not match STM CPUID)	Change SN using BLE/UART (ESx, Max)	System warning	1
28	Motor driver mos up-bridge short circuit	Check motor	Hardware error	3
29	Motor driver mos down-bridge short circuit	Check motor	Hardware error	3
31	Program skip error	Try to flash ESC	System error	3
32	No communication with IoT device	Leave that rental scooter where it belongs	System error	3
35	ESC not activated, has default S/N	for ESx, for Max	System warning	1
36	2+4 connector failure or external battery charging wire failure.		Hardware error	3
37	Charging base failure or built-in battery charging wire failure.		Hardware error	3
38	Charging overcurrent	Incorrect power supply	Hardware error	3
39	Internal battery overheat		Hardware error/battery mod warning	2
40	ESC overheat	Let the scooter cool down / check temperature sensors	Hardware error	3
41	External battery overheat		Hardware error	3
42	No communication with external BMS	Inspect external battery connectors, tighten up external battery screws	Hardware error	3
43	External BMS config invalid	Replace external BMS or battery; attempt a fix	System warning	1
44	External BMS not activated (has default S/N)	Replace external BMS or battery; attempt a fix	System warning	1
45	Internal BMS deep cell discharge		Hardware error	3
46	External BMS deep cell discharge		Hardware error	3
47	Internal battery protection board damaged	Replace internal battery or BMS	Hardware error	3
48	External battery protection board damaged	Replace external battery or BMS	Hardware error	3
49	Internal BMS firmware version mismatch	Change internal BMS firmware version	System warning	2
50	External BMS firmware version mismatch	Change external BMS firmware version	System warning	2
51	BLE firmware incompatible with DRV	Change BLE or DRV firmware	System warning	nd
52	BMS firmware incompatible with DRV (Retail) / ESC incompatible with battery hatch lock (Rental)	Change BMS firmware version (Retail)	System warning/Hardware error	nd
54	Motor phase error (Retail) / ESC/battery hatch lock communication error (Rental)	Check motor-related wiring (Retail)	Hardware error	nd
55	Battery hatch unlocked		System warning	nd

nd - no data