Once the car system (especially in a closed ecosystem) undergoes a major version upgrade, its bootloader is usually locked, preventing downgrades. If this happens, there is basically no solution in an overseas environment. Therefore, we strongly warn: do not blindly insert a USB drive to upgrade while offline.

We can purchase the hardware (diagnostic device) on your behalf. However, the original online diagnostic accounts (especially those involving anti-theft programming and module matching) have strict domestic IP location and real-name authentication restrictions, making it very difficult to log in stably from overseas for a long time, and we cannot guarantee technical support for this.

Usually yes, but with conditions. The seller must transfer the vehicle's account binding to you — without that, the app stays locked to the previous owner. Ask for a screen recording showing the unbinding and re-binding process. OTA updates and remote functions depend on the manufacturer keeping servers accessible from your region. Most major brands now support overseas accounts, but features like voice assistants or map data may be limited outside China. In-car navigation may default to Chinese maps, so plan to use Android Auto, CarPlay, or phone mirroring instead. Before purchase, confirm with the exporter in writing: which connected functions work in your country, and whether a regional account conversion is included in the price.