Yes. A full OTA firmware update overwrites the system partition. If you have installed a custom launcher (e.g., Projectivy or Flauncher), you will need to reinstall it after the update.
portable projector is essential for system stability, security, and accessing new features. While many smart projectors notify you of available updates over Wi-Fi, manual updates via USB are often necessary if the system fails to auto-update.
Sometimes a new version introduces bugs. If you desperately need to revert to an older stable version (e.g., downgrading from v3.1.22 to v3.0.20), JMGO does not officially support rollbacks. However, you can force flash an older version using the same USB method. This may void your warranty if something breaks.
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