How To Fix Apple ID Verification Failed "An Unknown Error Occurred"
If you receive the error "An Unknown Error Occurred" during Apple ID verification, watch this tutorial for troubleshooting tips, including checking your internet connection and trying the verification process again later.
0:25 - Fix 1 - Check Date And Time Settings
0:42 - Fix 2 - Sign Out And Then Back In
0:56 - Fix 3 - Switch Network Connection
1:08 - Fix 4 - Reset Network Settings
1:31 - Fix 5 - Verify Apple ID Password
1:43 - Fix 6 - Force Restart