iOS update and restore errors

Learn how to solve iOS update and restore errors.

Try these steps commencement

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

If you still see the fault, effort the steps beneath.

Choose your mistake number or bulletin

To learn what to exercise, cull your error:

  • 1, 2, iii, iv, 6, 9, 10, 11, 12, 13, 14, xvi, 17
  • 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37,
    xl, 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 resources tin can't be found."

Update the software on your Mac or PC

If you see error 10, your iOS device might have a newer version of iOS than is supported past your figurer. You lot'll need to update the software on your Mac or iTunes on Windows before you can update or restore your iOS device.

macOS x.11 and later:

  1. Disconnect and then reconnect your iOS device to your reckoner. You might need to unlock your iOS device before information technology is recognized by your Mac.
  2. When you see a bulletin 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 you lot continue to see fault 10, or you don't run into 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 servers

If you see error 1671, your reckoner is downloading necessary software. Wait for the download to finish, and then endeavour once again.

If you see one of the errors below, your computer might non be able to connect to Apple servers or your iPhone, iPad, or iPod impact:

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

Hither's what to bank check:

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

If you come across error 4037, your computer is unable to update your device because it's passcode locked and the device wasn't unlocked for the update or restore. Unlock your device and effort again. Learn what to practice if you forgot your passcode.

If you still see an error, contact Apple tree Back up.

Cellular Update Failed or Apple Pay Not Available alarm

If you lot meet either "Cellular Update Failed" or "Apple Pay requires an Update on this iPhone" alert after an update, larn what to do.

Bank check your USB connections

If you run across error 4005, 4013, or 4014, use these steps.

If you encounter one of the errors below, check your USB connection, USB cable, USB port, or figurer:

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

Here'south what to check. Try once more later on each step:

  1. Utilize the USB cable that came with your device. If you don't have it, endeavour 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 dissimilar estimator.
  4. If you nonetheless meet the error, cheque for other USB problems, bank check your third-party security software, and so cheque your hardware.

If you still meet an error, contact Apple Support.

Check your hardware

If you run into error 53, use these steps.

If you come across one of the errors below, you might have a hardware result:

  • i, 3, 11, 12, xiii, 16
  • 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 56
  • 1002, 1004, 1011, 1012, 1014, 1667, 1669

Here's what to check. Try once more after each pace:

  1. If iTunes is already open, quit and reopen it.
  2. Cheque your third-party security software.
  3. Make sure that your USB cable, computer, and network are reliable. And so try twice more to restore your device.
  4. Bank check for outdated or modified software.

If yous yet see the error, contact Apple Support.

Check for outdated or modified software

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