We use an internationally certified electronic signature platform (such as DocuSign or Adobe Sign). Each signed contract generates a digital certificate with a timestamp and encrypted hash value, which has full legal defense effectiveness in international arbitration courts.

We must inform you objectively: Most Chinese car manufacturers' connected services (cloud servers) are restricted by data security regulations and overseas network limitations. Once the vehicle leaves China, the factory-installed SIM card will become inactive. This means that official OTA upgrades and factory mobile app remote controls (like pre-cooling the car or unlocking doors) typically cannot be used overseas. The vehicle will operate as a standalone version, but this will not affect basic driving and physical button functions.

This is a typical case of "secondary damage caused by unprofessional rescue." Many hybrid vehicles require access to "maintenance mode" via engineering computers to allow the water pump to run at full speed for exhaust. We do not bear any moral or financial responsibility for cylinder damage caused by local technicians' misoperation.