When you encounter the issue where LSPosed shows 'SEPolicy is not loaded properly' after upgrading your Android version and rooting with Magisk, it typically indicates a compatibility problem between the new Android version and the current version of Magisk or LSPosed. Here are the steps to troubleshoot and potentially resolve this issue:

  1. Check Magisk and LSPosed Versions: Ensure that you are using the latest versions of Magisk and LSPosed that are compatible with Android 16. Sometimes, developers release updates to maintain compatibility with new Android versions.
  2. Reinstall Magisk and LSPosed: Uninstall both Magisk and LSPosed, then reboot your device into recovery mode. Reinstall the latest versions of Magisk and LSPosed from the Magisk module in the LSPosed settings.
  3. Update SEPolicy Module: If the issue persists, try updating the SEPolicy module specifically. This module is crucial for LSPosed to function correctly. You can find the latest version of the SEPolicy module on the Magisk module repository or the official LSPosed GitHub page.
  4. Report to Developers: If none of the above steps work, the issue might be a bug that needs to be addressed by the developers. You can report the issue to the Magisk and LSPosed developers with detailed information about your device model, Android version, Magisk and LSPosed versions, and the exact error message you are receiving.
  5. Wait for Updates: Sometimes, developers release updates to address known issues after a new Android version is released. Keep an eye on the official Magisk and LSPosed GitHub pages or other community forums for updates.

By following these steps, you should be able to either resolve the issue or provide valuable information to the developers to help them fix it.