iOS update and restore errors

Larn how to solve iOS update and restore errors.

Try these steps outset

  1. On a Mac with macOS Catalina ten.15 or after, make certain your Mac is upward to date. If yous have a Mac with macOS Mojave 10.fourteen or earlier, or a PC, make sure y'all have the latest version of iTunes.
  2. If your device couldn't be restored and you get a message that "an unknown mistake occurred [mistake number]," use these steps.

If you withal run into the error, try the steps below.

Cull your mistake number or message

To learn what to do, choose your error:

  • 1, ii, 3, four, 6, 9, x, 11, 12, 13, 14, 16, 17
  • xx, 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 trouble downloading the software."
  • "The device isn't eligible for the requested build."
  • "Invalid response."
  • "The required resource tin't be found."

Update the software on your Mac or PC

If you lot come across error x, your iOS device might have a newer version of iOS than is supported by your computer. You'll need to update the software on your Mac or iTunes on Windows earlier y'all tin can update or restore your iOS device.

macOS x.11 and later on:

  1. Disconnect and so reconnect your iOS device to your reckoner. You might need to unlock your iOS device before it is recognized by your Mac.
  2. When you 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 tin update or restore your iOS device.

Windows: Update to latest version of iTunes.

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

Make sure that your device can communicate with Apple servers

If you lot come across error 1671, your computer is downloading necessary software. Wait for the download to cease, then try again.

If yous see one of the errors below, your calculator 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
  • "There was a problem downloading the software."
  • "The device isn't eligible for the requested build."

Here's what to check:

  1. Make sure that your computer can communicate with the Apple software-update servers.
  2. Check your 3rd-party security software.

If you see 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 try once again. Learn what to do if you forgot your passcode.

If you still run into an error, contact Apple Back up.

Cellular Update Failed or Apple Pay Non Available alert

If you see either "Cellular Update Failed" or "Apple Pay requires an Update on this iPhone" alarm subsequently an update, learn what to do.

Bank check your USB connections

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

If yous see one of the errors below, 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 fault that includes "invalid response"

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

  1. Use the USB cablevision that came with your device. If yous don't have it, endeavor 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 unlike reckoner.
  4. If you lot withal see the error, check for other USB issues, check your 3rd-political party security software, then check your hardware.

If y'all still meet an mistake, contact Apple tree Support.

Check your hardware

If you encounter error 53, utilise these steps.

If you see one of the errors below, y'all might have a hardware issue:

  • 1, 3, 11, 12, 13, xvi
  • xx, 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 once again after each pace:

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

If you still see the error, contact Apple Support.

Cheque for outdated or modified software

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