: Includes "advanced financial level security" to protect payment data from magnetic stripe, IC card, and NFC transactions. Printer Firmware

Sunmi P1 4G firmware is built on , a deeply customized version of Android 6.0 (Marshmallow)

The Sunmi P1 4G Terminal relies on a heavily customized Android operating system known as . Upgrading to high-quality, official firmware directly improves several business-critical features:

A "high quality" firmware release ensures that the Kernel layer efficiently manages power and thermal regulation, while the Sunmi Framework provides reliable APIs for the Application layer.