Go to > Security and privacy (or Biometrics and security). Select Secure Folder > More settings . Choose Uninstall .
Force stop the Galaxy Themes app and in system settings.
If you are using a third-party APK, the license error is expected. The official Hex Installer on Google Play is the only version designed to pass verification. If you previously bought it, you can reinstall it for free by visiting the Library section of the Play Store. Summary Table: Troubleshooting Steps Primary Solution Uninstall Secure Folder from system settings. Verification Failure Clear Play Store cache/data and re-login. Theme Application Error Delete HC Base in Hex Troubleshoot and reset Galaxy Themes. Sideloaded APK Error Reinstall via the official Google Play Store . hex installer apk license error
Sometimes the Play Store itself loses track of the purchase: Clear the cache and data for the app.
In Hex Installer, go to the section > Fix HC Base and delete the High Contrast base. Go to > Security and privacy (or Biometrics and security)
The "Hex Installer APK license error" typically occurs when the application fails to verify its purchase through the Google Play Store, a problem often exacerbated by Samsung’s Secure Folder or recent One UI updates. Why the Hex Installer License Error Happens
This error primarily stems from a "piracy check" failure where the app cannot communicate effectively with Google Play Services. Common triggers include: Force stop the Galaxy Themes app and in system settings
Search for Hex Installer; if it shows an "Update" button, initiate it, stop it immediately, and then try launching the app again. 4. Use Official Reinstallation