Sunmi does not officially support bootloader unlock for V2 Pro due to payment security regulations. Any “unlock” found online voids your warranty and PCI certification.
Flashing unofficial firmware may permanently disable the device's secure payment features or NFC capabilities . SUNMI V2 PRO sunmi v2 pro firmware download upd
To update the firmware on your Sunmi V2 Pro device, follow these steps: Sunmi does not officially support bootloader unlock for