I have a Xiaomi M365 that when I turn on, it sounds error 24.
First, I found that the battery voltage was wrong and I found that one cells pack was desoldered. I repaired it, and the blue led on the BMS blinks slowly. Then the voltage in the battery connector was ok. However the problem was not solved.
The strange thing is the behaviour that I describe below:
1. If I disconnect the battery and connect it in another scooter, that scooter runs well. This would mean that the battery is right. What's more, I compared the BMS blue led behaviour and it was the same. It blinks slowly when scooter is turned off, and blinks fastly when scooter is turned on.
2. In the same way, if I disconnect ONLY the controller board and connect it in another scooter, that scooter runs well. This would mean that the controller is ok.
3. Finally, if I disconnect both controller and battery, and connect them in another scooter, the problems (ERROR 24) appears again.
So, it seems like there is a problem just between the controller and the battery.
Has anyone have this problem??
I measure voltages on controller board and battery voltage, 5V and 3.3V are right.
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