Xiaomi Electric scooter found under water by a boat
mielectricscooter1S how to fix it video
it's very similar to the M365

purchased part list:

BMS and balance PCBs: Bisida Scooter BMS 36V 15A M365
https://it.aliexpress.com/item/100500...

M365 Controller And Dashboard Xiaomi Scooter Accessories For M365Pro Electric Scooter Display And Motherboard Set 7 pcs Parts
https://it.aliexpress.com/item/100500...

Batteries: 18650 cells
Samsung INR1865035E 3450mAh Reclaimed
https://eu.nkon.nl/samsunginr186503...

CHAPTERS
0:00 Scooter found
0:47 Cleaning
1:33 Part list
2:10 Battery and ESC removal
2:55 Motor Disassembly and Test
5:06 Dashboard and Mainboard removal
6:45 Battery and BMS Fix
8:35 Reassemble Mainboard and Dashboard
9:30 Brake Fix
10:04 Summary