There are situations where you may need to manually flash the stock firmware, such as when the device is (unable to boot), stuck in a boot loop, or has a corrupted system. This advanced process requires a Windows PC, the correct firmware file, and dedicated flashing software.
As of 2025, Sunmi has been pushing a new "Maintenance Mode" for the P1 series. This firmware revision limits background processes when the device is idle, significantly extending battery life for delivery drivers. However, it also aggressively kills notification services, which can break third-party delivery apps (Uber Eats, DoorDash integration). Sunmi P1 4g Firmware
: Equipped with a 5.0MP camera capable of 1D/2D barcode recognition in 0.7 seconds and support for IC, magnetic stripe, and NFC payments (Apple Pay, Samsung Pay, etc.). There are situations where you may need to
Load the official into the flashing software on your PC. Click "Download" or "Flash" in the tool. This firmware revision limits background processes when the
Once downloaded, select . The device will reboot and install the package automatically. Method 2: MDM Cloud Deployment (For Fleets)