: Perform a hard factory reset via Recovery Mode. Turn off the device, hold Volume Up + Power until the recovery menu appears, select Wipe Data / Factory Reset , and reboot. 2. "PMIC" or "BROM" Errors During Flashing Cause : Incorrect USB drivers or a faulty USB port/cable.
Connect the Sunmi P1 to a stable Wi-Fi network or ensure a strong 4G cellular connection.