Upon successful completion, a green checkmark will appear in SP Flash Tool. Disconnect your device and power it on. The first boot may take several minutes as the new system configures itself.
Use this method if OTA is unavailable or the device won’t boot into Android.
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
Sunmi releases regular , typically in the last week of every month, to address vulnerabilities and maintain payment compliance standards. Always ensure your device is running the latest security patch to protect sensitive transaction data. 3. Troubleshooting & System Maintenance
Sunmi devices run on , a deeply customized version of Android optimized for business and payment security. Unlike consumer smartphones, the firmware on a Sunmi P1 manages specialized hardware like the built-in thermal printer, magnetic stripe reader, IC card slot, and secure PIN pad. Why Firmware Updates Matter Upon successful completion, a green checkmark will appear
Keeping your firmware updated is the best way to ensure your business operations run smoothly. While OTA updates are hassle-free, knowing how to use the Sunmi Assistant for manual flashing is a lifesaver for IT support teams.
If you encounter issues during or after a firmware change, use these troubleshooting steps to recover your device. 1. The Device is Stuck on the Sunmi Logo (Bootloop) Use this method if OTA is unavailable or
or via OTA (Over-The-Air) updates initiated from the device's settings menu. Developer Resources
The Ultimate Guide to Sunmi P1 4G Firmware: Updates, Flashing, and Troubleshooting
: Open the System Update app on your Sunmi P1 4G to check for available minor or major versions.