Ninebot ES2 error code 49
 

Hi there!

Yesterday my Ninebot ES2 switched on all alone and stared to beep with error code 49 on its display. It still could be ride, but with minimal power. And with beeping.

I tried to connect it via bluetooth, and even updated two out of three frimwares. The third (BMS) update failed almost instantly. I retried to update it many times, same result.

What can be done here, and what is 49 error code? Cant find any information about that code.