Windows [verified]: Checkra1n 0.12.4 Beta

Review: checkra1n 0.12.4 beta (Windows) – The Unconventional Tethered Bridge

Release Date: Late 2020 / Early 2021 (still relevant as a legacy tool as of 2026)
Developer: The checkra1n team (axi0mX, qwertyoruiop, et al.)
Based on: checkm8 bootrom exploit (permanent, unpatchable by Apple for A5–A11 chips)

1. Bootable Linux USB (Recommended)

The simplest and most reliable method.

• Download a lightweight Linux distro like Ubuntu or checkra1n’s own Linux image.
• Use Rufus to write it to a USB drive.
• Boot your PC from the USB (disable Secure Boot).
• Download the Linux version of checkra1n 0.12.4 and run it.
• Time: ~10 minutes setup.

Step 3: Put Your iPhone/iPad into DFU Mode

DFU (Device Firmware Update) mode is essential for the bootrom exploit to be injected. checkra1n 0.12.4 beta windows

How to enter DFU on iPhone 7 and newer (iPhone 8, X, etc.): Review: checkra1n 0

1. Connect device to PC.
2. Press and release Volume Up quickly.
3. Press and release Volume Down quickly.
4. Press and hold the Side button for 10 seconds.
5. Keep holding Side, then also press Volume Down for 5 seconds.
6. Release Side but continue holding Volume Down for 10 more seconds.

If the screen stays black, you’re in DFU mode. If you see the Apple logo or “Plug into iTunes,” you’ve failed—try again. Download a lightweight Linux distro like Ubuntu or

Final Verdict: Should You Use Checkra1n 0.12.4 Beta for Windows?

Use it if:

• You own an iPhone X or older on iOS 14 or earlier.
• You want a permanent, hardware-based jailbreak.
• You prefer a native Windows tool without virtual machines.
• You’re okay with a semi-tethered workflow (need a PC after each reboot).

Avoid it if:

• You have an iPhone XR or newer (use software-based jailbreaks instead).
• You’re on iOS 15–16 (choose palera1n instead).
• You need a fully untethered jailbreak (no checkm8 tool offers that).
• You rely on passcode or Apple Pay during the jailbreak process (A11 issues).