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.

A Certificate of Origin (C/O) is an official document stating where the vehicle was manufactured. Customs authorities use it to decide which tariff rates and trade agreements apply to your import. Why it matters: many countries offer preferential tariffs for certain origins. With a valid C/O, such as the ASEAN-China Form E or a GSP Form A, you may pay reduced or zero duty. Without it, you typically pay the standard, higher rate. The certificate must match the vehicle exactly: VIN, make, model and invoice details. It is usually issued by the China Council for the Promotion of International Trade (CCPIT) or customs authorities. Practical tips: request the C/O before shipment, because adding it later is slow; check that your country's customs accepts the specific C/O format; and confirm with your broker whether your vehicle category qualifies for preferential rates. This single document can save you thousands in duty.

We can only infer from the existing connected maintenance records. If the records show continuity and adhere to the recommended maintenance schedule, we will assign a high credit score; if there are gaps of tens of thousands of kilometers, we will assume it was not well maintained during that period and alert you.