Try a different USB cable or USB port (USB 2.0 is often more reliable than 3.0 for DFU mode).
| Part | Meaning | |------|---------| | | The version number of the checkn1x package. | | amd64 | The computer processor architecture for which the ISO is compiled. The “amd64” version works on any 64‑bit CPU , whether it is made by AMD or Intel. It is the version you should download unless you know you need the 32‑bit (i686) version. | | ISO | The file format for a bootable disc or USB image. | | Full | Indicates that the ISO contains a complete, ready‑to‑use Linux environment with checkra1n pre‑installed. | checkn1x106amd64iso full
Restart your computer and enter the BIOS/boot menu (usually F2, F12, Delete, or Esc). Select your USB drive to boot. Step 4: Run the Checkra1n Jailbreak Once Checkn1x loads, a command-line interface will appear. Connect your iOS device via USB. Try a different USB cable or USB port (USB 2
The full ISO ships with a stored on a hidden partition of the bootable media (or on a dedicated file if you use a USB‑HDD). The “amd64” version works on any 64‑bit CPU
The checkra1n exploit is a potent "bootrom" vulnerability for certain iOS devices, meaning it cannot be patched by a software update. However, the official checkra1n tool is a macOS application. checkn1x bridges this gap by providing a completely portable USB-based environment. Instead of installing a full Linux distribution like Ubuntu, you simply boot your PC from a small USB drive (over three times smaller than the popular alternative bootra1n ), and you are immediately presented with a text-based menu to run checkra1n . This makes the entire jailbreak process incredibly fast and simple for non-Mac users, taking only a few minutes from boot to completion.
iPhone 5s through iPhone X, various iPad models, and iPod Touch (specifically those with A7–A11 processors). iOS Support:
iOS 12.0 up to iOS 14.8.1 (depending on specific point releases)