This method voids warranty if performed incorrectly. Only use it if explicitly instructed by Sunmi support.
Navigate to Settings > Network & Internet > Mobile Network > Advanced > Access Point Names . Manually enter your carrier’s APN. If that fails, you may need to downgrade to the previous firmware using the Sunmi Flash Tool. Sunmi P1 4g Firmware
This method voids warranty if performed incorrectly. Only use it if explicitly instructed by Sunmi support.
Navigate to Settings > Network & Internet > Mobile Network > Advanced > Access Point Names . Manually enter your carrier’s APN. If that fails, you may need to downgrade to the previous firmware using the Sunmi Flash Tool.