You may find "custom ROMs" or unofficial firmware online. Installing non-official firmware on a Sunmi V2 Pro can: Void your warranty.
While Sunmi provides an official ecosystem, some users seek "unlocked" or stock Android firmware to repurpose devices for third-party software: sunmi v2 pro firmware
Ensure your POS software (like Loyverse, Square, or Shopify) is compatible with the latest Sunmi OS version before hitting "Install." Conclusion You may find "custom ROMs" or unofficial firmware online