If you use third-party POS software (such as Toast, Square, or proprietary apps), developers often release updates that require specific underlying Android versions or Sunmi system files. Running outdated firmware can cause apps to crash, freeze, or fail to open.
Always stick to official Sunmi OS releases to ensure the integrity of your business data. Pro-Tips for Firmware Maintenance sunmi v2 pro firmware
Write this down. If your build number is older than 6 months, you are almost certainly missing critical patches. If you use third-party POS software (such as