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A factory reset can resolve deep-seated system errors but will erase all local data.
The most reliable way to update your firmware is through the SUNMI Partners Platform or the device's built-in system update app. Sunmi P1 4g Firmware
: Business owners can manage updates for multiple devices via the Device Upgrade section in the Sunmi Cloud dashboard. Security Patching A factory reset can resolve deep-seated system errors
: 5.5" HD (1280 x 720) IPS capacitive multi-touch screen. Security Patching : 5
: Supports 4G (GSM/WCDMA/TDD_LTE/FDD_LTE), Wi-Fi (2.4GHz & 5GHz), and Bluetooth 4.0.
If you encounter software glitches or performance drops, several recovery steps can help restore the device. How to Factory Reset (Hard Reset)
Sunmi devices typically manage firmware through a centralized cloud system to ensure all terminals in a fleet are secure and up to date. Official Update Method (OTA)