Error 21❗Ninebot MaxG30 BMS replacement Ninebot MaxG30 BMS Tausch Ninebot MaxG30 Fehler 21 MaxG30D

In this video i will show how to fix Error 21 of the Max. Error 21 create a real pain...you can hide it in CFW generator ( Level 2 ) but the error, will still be there...and it doesn&allow: 1. To be able to see the "bricks" (▪︎▪︎▪︎▪︎▪︎) or percent % of the battery. 2. And the most annoying one...is the Cut-off current wehn driving at full throttle. I wasn&able to drive more than 25km/h without cut-off. When I got more than 25km/h after 50 meters my scooter stopped. And after some seconds I was able to turn it on again. ● First check ✔ the connection wires between controller and battery! If that doesn&help, you have to watch this video. You will know how to change Ninebot MaxG30/D BMS after watching this video.