Xiaomi M365 motherboard
The motherboard is probably the most important part of your scooter. Essentially it is more than just a motherboard as it has a processor. Over time outdoor use can let moisture into the scooter. If this happens it make may make the motherboard short circuit.
A common fault is the Xiaomi M365 motherboard. There is a very high chance your scooter has a motherboard fault if it is showing Error code 11, 28, 29, 40. Error 13&14 is brake lever and accelerator.
This is not always the case and in some instances the dashboard will show random data you’ve not seen before. If the
How to fit Xiaomi M365 motherboard
Turn the scooter upside down to expose the underside of the scooter
Remove the screws holding the plastic base plate on the scooter battery housing.
Remover the power cable first, then work your way around the motherboard removing all but the three motor cables.
Using an Allan key remove the bolts holding the old motherboard in place.
Fit the new Xiaomi M365 motherboard and screw in.
Remove the motor cables one by one and fit to the new motherboard. The reason for doing it this way is because it will reduce the risk of putting the wrong cables to the terminals.
Re-connect all the other data cables and then finally the power cable
When re attaching the battery housing place, use lock tight on the screws. It is advisable to use a bathroom sealant on the baseplate to stop any moisture making its way into this area.
Xiaomi M365 Error codes and meanings.
10 – Bluetooth (BLE) module communication error (Bluetooth module)
11 – Current sensors calibration errors or Power MOSFET error
12 – Current sensors calibration error
13 – Current sensors calibration errors or Power MOSFET error
14 – Throttle and brake errors
15 – Throttle and brake errors
16 – Undefined
17 – Undefined
18 – Motor Hall sensors error
19 – Undefined
20 – Undefined
21 – BMS communication error
22 – Bad BMS serial number/password
23 – Bad BMS serial number/abnormal error
24 – Wrong supply voltage
25 – Undefined
26 – Check the controller (Save operation in the Flash memory maybe wrong)
27 – Bad controller password
28 – MOSFET error
29 – ESC has wrong serial number in memory or “not activated”
28 – MOSFET error
29 – MOSFET is abnormal
30 – Undefined
31 – Program error
32 – Undefined
33 – Undefined
34 – Undefined
35 – Serial number of the scooter is wrong
36 – Battery temperature sensor error or device is overheating
37 – Undefined
38 – Undefined
39 – Scooter temperature is abnormal
40 – Xiaomi M365 Motherboard overheating
Watch how to change here