iOS 15 has been rolled out this September 20th and there are many people who want to or have updated to the iOS 15 version. When downloading a new iOS on your iPhone/iPad over the air (directly in Settings), you will see the “Verifying Update…” screen. Generally, it takes a few minutes to finish the verifying procedure, and you will be able to download the iOS update.

But some people may accidentally be stuck on this window for endless hours while updating to a new iOS system. This may be easily fixed after some minutes cause the new update is just debuted for millions of Apple users, so there are so many people who are trying to download the new iOS 15, and the server may be busy, overload, or down.