Most new car manufacturers' e-SIMs are directly soldered onto the T-Box motherboard (surface-mounted) and cannot be removed and replaced like a phone. Unauthorized desoldering of the motherboard may cause complete communication failure in the vehicle, and we strictly prohibit this operation.

Interior wear is harder to fake than an odometer and often reveals true usage better than any document. Focus on high-contact points the seller rarely restores. The driver's seat bolster shows creasing and cracking by 80,000-100,000 km even with covers. Steering wheel leather polishes smooth and darkens with hand oils; a shiny wheel with low claimed mileage is a red flag. Pedal rubbers wear through at similar rates — check accelerator, brake, and clutch depth. Second-row wear patterns tell you how the car was used: heavy child-seat indentations suggest family use (usually gentler), while uniform rear wear with clean front suggests commercial or ride-hailing duty. Check seat rails for rust (indicates water ingress) and look under floor mats for moisture staining or musty smell — flood cars often hide it there. Also examine the infotainment and instrument cluster: Chinese EVs log usage data internally, and a dealer diagnostic readout can cross-check driving hours against mileage. Request close-up, well-lit photos of these specific points during your live video inspection rather than relying on the seller's gallery.

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.