If the battery was disconnected or died, the radio/nav screen will display "CODE" or "WAIT."
You get into your BMW (typically a 2014-2019 model with NBT or EVO iDrive). You click "Owner's Manual" on the screen, and instead of instructions, you see: bmw 8259ver01 user manual fix
: You can find relevant setup guides for these 8259-series Android units at Audiovolt or Vhedia . If the battery was disconnected or died, the
: In Factory Settings, navigate to CAN Type or CANBUS . and instead of instructions
: Choose the correct protocol for your car (e.g., Hiworld → BMW → [Your Model]).