Once the car system (especially in a closed ecosystem) undergoes a major version upgrade, its bootloader is usually locked, preventing downgrades. If this happens, there is basically no solution in an overseas environment. Therefore, we strongly warn: do not blindly insert a USB drive to upgrade while offline.

Use credit check apps (like Check Doctor or Ant Queen) to pull the complete accident record.

We will carefully check if the chassis number on the windshield, chassis, and door frame matches.