Delete the beta profile Go to Settings | General | Profile (you only get the Profile menu if you’ve got multiple profiles installed, such as joining the beta programme).
Tap the Beta Software Profile option and tap Delete Profile, then tap Delete to remove it. Update your device Go to Settings | General | Software Update and check for a new official update.
Both are handled a little bit differently, but the issue is the same.
Before we start: It's crucial that you make sure that your Apple device is connected to the internet when performing this fix.
When your device has completed the reset, rejoin your Wi-Fi network and try the update again.4.
Delete the update Sometimes a corrupt update can cause a problem, but you can remove and retry.
Scroll through it until you see Software Update, then select this entry and tap Delete Update. If you want to try out the latest releases before anyone else, you have to sign up for the Apple Public Beta service on each device you want to use.
Regular updates are the official versions that Apple releases to the public, having completed its testing on all devices.Be warned, doing this will require you to enter all of your Wi-Fi passwords again.Go to Settings | Reset | Reset Network Settings and then tap Reset in the dialog box.I found that if my device wasn’t updated to the latest official release of i OS, I had problems with getting the latest beta release. Delete the current beta update Go to Settings | General | Storage & i Cloud Usage and tap Manage Storage.Wait for the list to be populated, then scroll down, tap Software Update and then Delete Update.2. With all of its fancy bells and whistles it brings to the table, many Apple users are again running into the "Unable to Verify Update" error when trying to install i OS 11.