iOS 12 Beta delete?
i have been on the iOS 12 beta do I need to delete it and restore using the standard version? It no longer says beta when I check for updates it says 12.1 and up to date ?
How to install or uninstall iOS beta software - Apple Support
https://beta.apple.com/sp/betaprogram/unenroll#ios
Make sure you go to both links and follow the instructions.