The best way to restore your Pro features is to open up Secure Settings from your launcher, make sure you have a data connection and click the "Restore Purchases" item at the bottom of the main screen. If this is successful, you should immediately have access to your Pro features.
If this doesn't work, please:
Lastly, if none of this works, please uninstall and re-install Secure Settings - do not restore from a backup! After doing this, make sure you have a data connection and start the app up again. Your license should be downloaded automatically.
- Go to the Settings app
- Select Apps
- Swipe to All
- Scroll to and select Google Play Store
- Press Clear data and Clear cache
- Finally reboot your device and try again
Contact me if you are still having difficulty.