Xiaomi Scooter 2 Pro - error 21 - Communication error with the BMS

If your Xiaomi Scooter 2 Pro (or other similar) have error 21, which is communication error with the BMS, check resistors on controller. If you dont have multimeter, for test, you can simply shorting that 2 resistors (as you can see in video). While it is that problem (Error 21 is gone), you need resistor (or 2) with 120ohm, type 0603 (lenght 1,6mm).