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.

We will provide the transfer record from the vehicle registration certificate. A high number of transfers does not necessarily indicate poor condition (for example, internal transfers within a family for quota purposes), but we will consider it a risk factor and conduct a more thorough physical inspection to verify its actual condition.

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.