Can't update iPhone to iOS 15

VPN or proxy connections might prevent your device from contacting the update servers.

• Get help with over-the-air iOS updates - Apple Support

• Remove and download the iOS update again

If you still can't install the latest version of iOS, try downloading the update again:

1. Go to Settings > General > [Device name] Storage.

1. Find the iOS update in the list of apps.

1. Tap the iOS update, then tap Delete Update.

1. Go to Settings > General > Software Update and download the latest iOS update.

If you don’t see the update in the list of apps or if the issue happens again, you need to update your device with iTunes.

Try updating iOS after each step.

• Try to Forget the WiFi network and add it again

• Try another WiFi network 

• Toggle sets automatically off and then on

• Reset your network settings

• Force restart your device

• Remove any beta profiles, if applicable

• If everything fails: - Use iTunes or Finder (for macOS Catalina+) to update your device instead of over-the-air

• Get help with iOS update and restore errors - Apple Support

• If you see an error when you update or restore your iPhone, iPad

susy166 Said:

"Updating!!: Hey okay so I’ve been trying to update my iPhone it is currently on iOS 13.2 trying to update to 15 though it doesn’t let me update it threw the phone and I did it threw the computer the update installed but my phone has yet to update and the iTunes on my computer is saying extracting software but the loading isn’t moving forward. "

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Troubleshooting iPhone Updates and Extracting Data:

Give it a few. If there is Gigabytes of data, then it will take a few, sure enough.