I download the iOS 15 and I was unable to install it immediately, it’s has me to download again
Unable to install iOS 15 after download
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Try updating iOS after each step.
- Try Forget the WiFi network and add 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