How to Downgrade from iOS 12 to iOS 11 Safely: A Comprehensive Guide

Downgrading from iOS 12 to iOS 11 is a process that requires careful planning and execution. As Apple typically stops signing older versions of iOS shortly after a new version is launched, it is important to check if iOS 11 is still being signed by Apple before proceeding. If it is, this guide will walk you through the steps needed to downgrade your iPhone or iPad from iOS 12 to iOS 11 seamlessly.

Backup Your Device

Before you begin the downgrade process, the first and most crucial step is to back up your device. Use either iTunes or iCloud to create a backup. This ensures that your data remains safe in case anything goes wrong during the downgrade process.

Download the iOS 11 IPSW File

To downgrading iOS, you need to download the correct IPSW file for your device. IPSW files are firmware bundles that contain all the necessary data to install a specific iOS version. You can find these on reputable websites, such as:

Reality Expander Redsn0w Fatality

Make sure to select the version that matches your device model exactly for a smooth transition.

Check if iOS 11 is Signed

Before proceeding, it's vital to verify that the iOS 11 version you intend to install is still being signed by Apple. This check can be carried out in a few ways:

Using Recovery Mode: Go to Settings > General > About and see if the Using iPhonespecific Guides: Check Apple's documentation specific to your device model for the current signing status.

Put Your Device in DFU Mode

If both conditions are met, the next step is to put your device into DFU (Device Firmware Update) mode. Here is how you do it for different iPhone models:

iPhone 8 and Later

Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Press and hold the Side button until the screen goes black. Press and hold the Volume Down button while continuing to hold the Side button for 5 seconds. Once the screen goes black, release the Side button but continue holding the Volume Down button until iTunes detects the device in recovery mode.

iPhone 7 and 7 Plus

Press and hold the Volume Down and Side buttons simultaneously for 8 seconds. Release the Side button but continue holding the Volume Down button until iTunes detects the device.

iPhone 6s and Earlier

Press and hold the Home and Top or Side buttons together for 8 seconds. Release the Top or Side button while continuing to hold the Home button until iTunes detects the device.

Restore Your Device

With your device in DFU mode, you can now proceed with the restore process:

In iTunes or Finder, select your device and click the "Restore iPhone" button. Hold the Option key on Mac or Shift key on Windows. Select the downloaded iOS 11 IPSW file and confirm the restore.

After the restore process completes, your device will restart. At this point, you can either set it up as new or restore your backup to retain your previous data and settings.

Important Notes

Data Loss: Downgrading may result in data loss, especially if you choose not to restore from a backup. App Compatibility: Some apps may not work correctly after downgrading, particularly if they were updated for iOS 12. Risk of Bricking: There is always a risk of bricking your device when modifying its software. Proceed with caution and ensure your backup is complete.

Finally, if Apple has stopped signing iOS 11, you will not be able to downgrade. In such a case, consider waiting for a future iOS update or exploring other solutions to address any issues you are experiencing with iOS 12.