Justatech Checkra1n 0.12.4 Windows

In the startup window, select the USB flash drive that just burned the checkn1x ISO file.

After you've launched the Checkra1n, connect your iOS device to the computer. Then select the Options from the keyboard arrow key and press Enter to set the jailbreak tool.

Justatech Checkra1n 0.12.4 Windows

From the Settings screen, select Allow Untested iOS/iPadOS/tvOS versions option from the keyboard arrow key, and press Enter to select it.

Justatech Checkra1n 0.12.4 Windows

After selecting "Skip A11 BPR check", press Enter to select.

Justatech Checkra1n 0.12.4 Windows

Note 1: If you have an iPhone 8/8 Plus/ X with iOS 14 system, you need to tick "Skip A11 BPR check" option .

Note 2: You could not jailbreak an iPhone 8/8 Plus/ X running iOS 14(with lock screen passcode). If with lock screen passcode, please have a deep flash of the firmware firstly, and try to jailbreak again.

Then choose the Back button and press Enter to back to the main interface.

Justatech Checkra1n 0.12.4 Windows

After you hit the Start button, press Enter to jailbreak your iOS device.

Justatech Checkra1n 0.12.4 Windows

After the checkn1x tool is initiated, connect your iOS device to the computer, and you will see a connected reminder in the program. The select the Start option from arrow keys the on your keyboard and press the enter key.

Justatech Checkra1n 0.12.4 Windows

To jailbreak your iOS device, CheckN1x requires your device be in DFU mode. Select "Next" and the program will direct you to DFU mode.

Justatech Checkra1n 0.12.4 Windows

Check the "Next" option and Checkn1x will automatically put your iOS device into recovery mode first.

Justatech Checkra1n 0.12.4 Windows

Select the "Start" option, and then follow the instructions on Checkn1x to put your iOS device into DFU mode.

Justatech Checkra1n 0.12.4 Windows

After your device enters DFU mode successfully, Checkn1x will automatically jailbreak your device. When the jailbreaking process is completed, select "Done" and unplug the USB flash drive.

Justatech Checkra1n 0.12.4 Windows

Tip #1: If the jailbreaking process gets stuck:
Change a different USB flash drive and try to jailbreak again.
Restart your iOS device and computer and try to jailbreak again.
Tip #2: If jailbreak failed: