Sunmi V2 Root ((top)) -

(not recommended for production payment devices):

Some independent developers have successfully used software vulnerabilities like CVE-2020-0069 (known in the community as sunmi v2 root

There is no single "one-click" root tool for all Sunmi devices. Instead, developers rely on specific vulnerabilities or manual firmware flashing. | | Windows PC | Most root tools

| Item | Description | |------|-------------| | | Ensure battery >50% to avoid power loss during flashing. | | Windows PC | Most root tools are Windows-only (ADB/fastboot drivers). | | USB Type-C Cable | A high-quality data cable (not just charging). | | Sunmi V2 ADB Driver | Download from Sunmi official developer site. | | Root Package | A specific boot.img or Magisk-patched file for your firmware version. | | Sunmi Flash Tool | Custom flashing utility (leaked or developer-provided). | | Backup | Use adb backup -all to save app data. | | | Root Package | A specific boot

This is the biggest risk. The thermal printer and barcode scanner drivers are proprietary. If you root the device and flash a custom ROM (like LineageOS), you will almost certainly lose the ability to print receipts or use the scanner buttons correctly. The software that binds the hardware triggers to the print API is part of the Sunmi system partition.

Rooting enables direct communication with the built-in printer, scanner, and cash drawer via GPIO or serial commands—perfect for custom POS software development.