Similar to unc0ver and Chimera, Checkra1n tool also has built-in Restore System function to support users to restore the device to the first state, which may be applied when the device encounters errors during the installation of tweaks, corrections corrupted files, software conflicts, otherwise you just don’t need to use jailbreak anymore.
Restore System is a function to remove jailbroken devices built into the jailbreak version of Checkra1n for iOS 12.3 – 13.3, to help restore all changes that the jailbreak process has made to the file. root of the system and delete the added files later. All data stored on the device such as photos, videos, music, applications, editing files left over and installed, unaffected when performing jailbreak state removal using the Restore feature. System.
REMOVE JAILBREAK IOS 12.3 – 13.3
- Open Cydia and remove the tweak you have installed earlier (to minimize junk files and shorten un-jailbreak time thereafter)
- Open the Checkra1n application from the main screen> click the Restore System button
- The device will automatically reboot and perform the process of restoring the original file of the system, while removing the jailbreak state.
After successful jailbreak, the device will return to its original state (not unlocked) and most of the tweaks, applications and Cydia will be removed. You can perform more operations to restore the device to factory settings in Settings to make the device "cleaner".