All our measuring instruments (especially calipers, paint thickness gauges, and refrigerant pressure gauges) are calibrated quarterly according to ISO quality management system requirements to ensure the data we provide you is objective, accurate, and reliable.

It's extremely difficult. Unauthorized modifications can lead to module current overload protection, resulting in a lock. In China, you need to use the factory online engineer account to reprogram it. It's basically impossible to perform online decoding overseas. We strongly warn against blindly modifying the electrical systems of modern integrated circuit vehicles.

It completely falls under force majeure. After the delivery is completed (crossing the ship's rail) under FOB or CIF terms, the seller (us) bears no liability for refunds or compensation due to political risks or legal changes in the destination country that hinder customs clearance or lead to confiscation.