How to Downgrade from iOS 11.2 to iOS 11.1.2 on iPhone or iPad [Updated]

Downgrade from iOS 11.2 to iOS 11.1.2

Apple released iOS 11.2 which includes new features like Apple Pay Cash and several improvements. However, as we reported earlier, Ian Beer, a security researcher in Google’s Project Zero team has announced that he plans to release part 1 of the tfp0 exploit for iOS 11.1.2, which has raised hopes of iOS 11 jailbreak.

If you had upgraded to iOS 11.2 but are interested in a jailbreak, then you may want to downgrade to iOS 11.1.2 as soon as possible before Apple stops signing iOS 11.1.2 firmware file.

Update:

Apple has stopped signing iOS 11.1.2 and iOS 11.1.1 firmware files. So you can no longer downgrade your iPhone, iPad or iPod touch to iOS 11.1.2.

METHOD 1

This method is much faster, and a method we’ve used successfully several times, but it would be important to highlight that it is not the recommended method as it is riskier.

➤  How to Downgrade from iOS 11.2 to iOS 11.1.2 Without Losing Data

METHOD 2

This method is recommended, but it is more time-consuming as it involves restoring data from backup. It is also important to note that you will be able to only restore from the last iOS 11.1.2 or lower compatible backup, and will lose the data since upgrading to iOS 11.2.

Important points

  • You will be able to downgrade back only to iOS 11.1.2. You cannot downgrade to the previous versions as Apple has stopped signing the older iOS firmware files.
  • One of the golden rules of jailbreaking is to stay where you’re and avoid updating your device to the latest iOS software update to improve your chances of jailbreaking your iOS device. So we wouldn’t recommend upgrade to iOS 11.1.2 just yet, if you’re on iOS 11.1.1 or lower.
  • Please note that the process involves wiping your device, and then restoring it from a backup, so it can take some time depending on how much data needs to be recovered and your internet connection (if you’re restoring from an iCloud backup).
  • Please use this procedure if you have an iCloud or iTunes backup of your device as it involves wiping your device.
  • The standard iCloud and iTunes backup will likely be iOS 11.2-based, so it may not restore properly to an iOS 11.1.2 device. So it is important to have the archived backup you made before installing iOS 11 as we had recommended.

Check real-time signing status

To find out if Apple is still signing the firmware file, check this website. Green rows with a tick mean that Apple is still signing the firmware file, and you can downgrade from iOS 11.2 to iOS 11.1.2.

How to Downgrade from iOS 11.2 to iOS 11.1.2

Note: If you’re downloading the firmware file using Safari then ensure that auto unzip feature is disabled or use Chrome or Firefox. Alternatively, renaming the .zip file as .ipsw file should also work.

  • You now need to put your device in DFU mode (if you want to find out what it means check this post for more details):
  • Plug your device into your computer.
  • Turn off the device by holding the Sleep/Wake or Power button and swiping it off.
  • Hold the power button for 3 seconds.
  • Begin holding the Home button without releasing the Sleep/Power button for 10 seconds.
  • Release the power button and continue holding the home button until you get a popup from iTunes that it has detected that your device is in Recovery mode.
Downgrade iOS 8.4.1 - iTunes - Recovery mode
  • Click on the Ok button.
  • Hold the Alt/Option key on the Mac or Shift key in Windows on your keyboard and click on the Restore iPhone… (iPad/iPod touch…) button. Note: If you directly click on the Restore iPhone button without holding the Alt/Option key on the Mac or Shift key in Windows will result in restoring your device back to iOS 11.2, which is the latest version.
  • Select the iOS 11.1.2 IPSW file you had downloaded earlier.
  • Then click on the Restore and Update button to continue.
Downgrade iOS 8.4 - Erase screen
  • In the next screen, it will give you information about the iOS 11.1.2 update. Click on the Next button, followed by the Agree button to continue.
  •  iTunes will now verify the software and install it on your device. It should take around 10 minutes.
  • After it is successfully restored to iOS 11.1.2, you should see the white ‘Hello’ screen. Follow the on-screen instructions to set up your device, and restore your device from the archived backup you had made to restore your personal data.

That’s it. Your iPhone, iPad or iPod touch should now be successfully downgraded from iOS 11.2 to iOS 11.1.2.

Troubleshooting Tips

If you get the error message “This device isn’t eligible for the requested build” then it is probably because you’ve downloaded the wrong firmware file for your device.

Please don’t forget to let us know how it goes in the comments and drop us a line if you any questions or need any help.

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