Ninebot ESX Error Code 35
"Default vehicle S/N, please replace master control. (35)"
If your Ninebot ESX(ES1, ES2, ES3, or ES4) or SNSC (1.0 or 1.1) 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.
This error is caused by the ESC having the default serial number of N2GEA1601C0001.
This can happen for any number of reasons but usually happens when flashing a firmware file with the serial number included.
To fix it, change the serial number to a different one.
Any serial number will do but make sure it's the prefix you want.
To do that, you can follow the guide at Ninebot ESX Change Serial number.