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- Thu Feb 24, 2022 9:22 am
- Forum: Xiaomi Scooters
- Topic: MI BMS - error 21
- Replies: 0
- Views: 1387
MI BMS - error 21
Hello, i have rebuilt my M365 battery with new cells and wanted to reset the charge times counter. I flashed the BMS via ST link, (program memory) and got an nice flashing blue led but E21 (no bms data). I tried to flash also data memory hex, but no luck. I followed all stepy by conejo (changing 102...