iOS update and restore errors

Acquire how to solve iOS update and restore errors.

Try these steps start

  1. On a Mac with macOS Catalina 10.15 or afterward, make certain your Mac is up to date. If you take a Mac with macOS Mojave 10.fourteen or earlier, or a PC, brand certain 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 [error number]," utilize these steps.

If you still see the mistake, endeavour the steps beneath.

Choose your fault number or bulletin

To learn what to practise, choose your error:

  • 1, 2, iii, 4, half-dozen, 9, 10, 11, 12, thirteen, fourteen, sixteen, 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 resources tin can't be establish."

Update the software on your Mac or PC

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

macOS 10.11 and later:

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

Windows: Update to latest version of iTunes.

If you go along to see fault x, or you don't see a dialog asking you lot to update the software on your mac, contact Apple Support.

Make certain that your device can communicate with Apple servers

If yous run into mistake 1671, your calculator is downloading necessary software. Wait for the download to finish, then try over again.

If yous come across ane of the errors below, your computer might not be able to connect to Apple servers or your iPhone, iPad, or iPod touch:

  • 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."

Here'due south what to check:

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

If y'all see mistake 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 try once more. Learn what to do if you forgot your passcode.

If y'all still see an error, contact Apple tree Support.

Cellular Update Failed or Apple Pay Not Bachelor alert

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

Cheque your USB connections

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

If y'all see i of the errors below, check your USB connexion, USB cablevision, USB port, or computer:

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

Here's what to cheque. Try over again after each step:

  1. Use the USB cable that came with your device. If you don't have it, effort a different Apple USB cable.
  2. Switch to a unlike USB port on your computer. Don't plug into your keyboard.
  3. Switch to a USB port on a different estimator.
  4. If y'all however meet the error, check for other USB issues, bank check your tertiary-party security software, then bank check your hardware.

If you lot still see an mistake, contact Apple Support.

Check your hardware

If you come across error 53, employ these steps.

If y'all meet i of the errors below, yous might have a hardware result:

  • 1, 3, eleven, 12, 13, 16
  • twenty, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 56
  • 1002, 1004, 1011, 1012, 1014, 1667, 1669

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

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

If you however see the mistake, contact Apple tree Support.

Check for outdated or modified software

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