Ninebot Max Error Code 23
"Default built-in Battery Serial Number, Please Replace the Battery"
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.
This error is caused when the battery has the default number, similar to Error 35.
The serial cannot be 3GA0016A1A0001.
Change the BMS serial number using an app like Ninebot Flasher or Ninebot IAP.
Even changing the serial number by one character should be enough.