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.

It depends on the brand, so verify before buying: 1. OTA updates: most newer Chinese EVs update over the air, but some brands tie updates to the region of registration—an exported car may stop receiving them or stay on China firmware. 2. Companion apps: functions like remote climate, charging status, and location often require a Chinese phone number or mainland server access; abroad they may work partially or not at all. 3. Language and units: check the infotainment can switch to your language and your units (miles/km). Ask the exporter to demonstrate the app functions live on video before purchase, and get written confirmation of what will work after export. For the battery, request an SOH (state of health) report—battery replacement is far costlier than any software limitation.

Europe and some developed countries have very strict regulations on greenhouse gases. If required by customs, we will specify the exact refrigerant type and charge amount according to the vehicle's air conditioning compressor nameplate in the remarks section of the packing list and commercial invoice.