Testing is mandatory. Troubleshooting electrical devices in the car is part of the standard procedure. We will test the window lift motors, mirror folding, air conditioning compressor and fan, electric seat tracks, etc. Any stuttering or failure of electronic components will be recorded.

It is extremely dangerous and usually not allowed. This can easily trigger the anti-money laundering (AML) controls of China's foreign exchange administration. The remittance account title must closely match the contract buyer and the bill of lading consignee. If payment on behalf is necessary, a legally binding "Tripartite Payment Agreement" must be provided in advance and undergo compliance review by our finance department.

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.