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Software update failed

I’ve tried multiple times to get my phone to download and install the new iOS 15.1 software update. After almost an hour of waiting for the download, it fails before the installation process. I’ve shut down my phone and turned it back on and retried the process. Again it failed. I’ve done this 3 times with no success

iPhone 11

Posted on Nov 14, 2021 1:29 PM

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Question marked as Top-ranking reply

Posted on Nov 14, 2021 1:32 PM

I'm assuming that you have tried these update "over-the-air" using a wireless connection ... correct? If so, have you tried temporarily connecting your iPhone directly to a computer to perform the update yet?


Ref: If your iPhone, iPad, or iPod touch won't update - Apple Support

5 replies

Nov 14, 2021 1:32 PM in response to Mamasuarus

Make sure that your iPhone is setup to meet the following requirements before you attempt to update the iOS version-

  • Your iPhone must have a fast Wi-Fi connection; you cannot update over cellular data or a cellular hotspot
  • The iPhone can not be in Low Power mode
  • The battery state of charge must be above 50%
  • Your iPhone must have at least 6GB or more free storage space
  • Your iPhone cannot be connected through VPN
  • You should leave the phone plugged in until it finishes updating, both to assure that it remains above 50% and to keep Wi-Fi enabled (Wi-Fi turns off when the phone sleeps if not connected to power).


Axel F.

Software update failed

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