Cause: The device's country code does not match the current location. Mainland China version devices can only be activated in Mainland China, Hong Kong, and Macau. International version devices can only be activated in regions outside Mainland China, Hong Kong, and Macau.
Solution: Different versions cannot be changed and must be activated in the corresponding region. Please contact the original purchase channel to confirm the device's origin and version, and have the seller resolve the issue. If you purchased an international version directly from the official channel and are overseas but still cannot activate, provide the activation email and device SN to the official channel for troubleshooting.