*FIX** I’ve been experiencing the same technical difficulties and finally found a fix. Bust out your old iPhone. Setup your old iPhone from your current iPhones backup. Once your old iPhone has loaded your backup, your iPhone will prompt you to update to IOS 14. Install update onto old iPhone. Reset current iPhone and erase all content and settings. Once formatted, setup as new iPhone and update to iOS 14. Once completed, proceed to erase all content and settings again. Now setup your current iPhone from your old iPhone. Hope that helped. I’ve been struggling with the beta profiles, and updates for the past week and it’s been driving me insane. Best of luck fam! Cheers!