Ninebot Max Error Code 51
"Controller and dashboard match failure"
If your Ninebot Max is beeping or has a red wrench icon and flashes this code, read below.
If you clicked the wrong error code, go back to the Error Code Index.
Previous Error Code: Ninebot Max Error Code 50 - Next Error Code: Ninebot Max Error Code 52
Cause
Currently, I have not experienced this error so I am not sure what causes it.
Fix
Update all parts to "proper firmware".
Restart the scooter.