iOS update and restore errors

Learn how to solve iOS update and restore errors.

Attempt these steps start

  1. On a Mac with macOS Catalina 10.15 or later, brand sure your Mac is up to date. If you take a Mac with macOS Mojave 10.14 or earlier, or a PC, make sure you have the latest version of iTunes.
  2. If your device couldn't be restored and you get a message that "an unknown error occurred [fault number]," utilise these steps.

If you still see the error, effort the steps below.

Choose your error number or message

To larn what to exercise, choose your error:

  • ane, ii, 3, 4, 6, 9, ten, 11, 12, 13, 14, 16, 17
  • 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37,
    40, 53, 56
  • 1002, 1004, 1011, 1012, 1014, 1015
  • 1600, 1601, 1602, 1603, 1604, 1611, 1638,
    1643–1650, 1667, 1669, 1671
  • 2001, 2002, 2005, 2006, 2009
  • 3002, 3004, 3013, 3014, 3015, 3194, 3200
  • 4005, 4013, 4014, 4037
  • "Cellular Update Failed."
  • "Apple Pay Not Available on this iPhone."
  • "There was a problem downloading the software."
  • "The device isn't eligible for the requested build."
  • "Invalid response."
  • "The required resource can't be plant."

Update the software on your Mac or PC

If you lot see error x, your iOS device might have a newer version of iOS than is supported by your estimator. You'll need to update the software on your Mac or iTunes on Windows before you tin update or restore your iOS device.

macOS 10.11 and later:

  1. Disconnect and then reconnect your iOS device to your computer. Yous might demand to unlock your iOS device before information technology is recognized by your Mac.
  2. When y'all see a message that says a software update is required to connect to your iOS device, click Install to download and install the software then your Mac can update or restore your iOS device.

Windows: Update to latest version of iTunes.

If y'all continue to come across fault 10, or you don't run across a dialog asking you to update the software on your mac, contact Apple Back up.

Brand sure that your device tin can communicate with Apple tree servers

If you run into error 1671, your estimator is downloading necessary software. Await for the download to terminate, then endeavor over again.

If you encounter i of the errors below, your estimator might not be able to connect to Apple tree servers or your iPhone, iPad, or iPod touch:

  • 17, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, 3200
  • "At that place was a problem downloading the software."
  • "The device isn't eligible for the requested build."

Here'southward what to check:

  1. Make sure that your computer can communicate with the Apple tree software-update servers.
  2. Bank check your third-party security software.

If you see error 4037, your estimator is unable to update your device considering it'due south passcode locked and the device wasn't unlocked for the update or restore. Unlock your device and endeavor once again. Learn what to do if you forgot your passcode.

If y'all all the same see an error, contact Apple Support.

Cellular Update Failed or Apple tree Pay Not Bachelor alarm

If you encounter either "Cellular Update Failed" or "Apple Pay requires an Update on this iPhone" alert later an update, learn what to do.

Check your USB connections

If y'all see error 4005, 4013, or 4014, utilize these steps.

If you come across ane of the errors beneath, bank check your USB connection, USB cable, USB port, or computer:

  • 13, 1600, 1601, 1602, 1603, 1604, 1611, 1643–1650
  • 2000, 2001, 2002, 2005, 2006, 2009
  • An mistake that includes "invalid response"

Here's what to check. Try again after each stride:

  1. Use the USB cable that came with your device. If yous don't accept information technology, try a different Apple USB cable.
  2. Switch to a different USB port on your computer. Don't plug into your keyboard.
  3. Switch to a USB port on a unlike computer.
  4. If y'all however see the error, check for other USB issues, check your third-party security software, and then check your hardware.

If you still run across an error, contact Apple Support.

Check your hardware

If you run into error 53, use these steps.

If you run into i of the errors below, you might have a hardware consequence:

  • 1, 3, 11, 12, thirteen, 16
  • 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, forty, 56
  • 1002, 1004, 1011, 1012, 1014, 1667, 1669

Here's what to check. Attempt again after each pace:

  1. If iTunes is already open, quit and reopen information technology.
  2. Bank check your third-party security software.
  3. Make certain that your USB cablevision, computer, and network are reliable. And so endeavor twice more to restore your device.
  4. Check for outdated or modified software.

If you yet see the error, contact Apple Support.

Check for outdated or modified software

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