. Discovered by security researcher axi0mX, checkm8 is a permanent, unpatchable bootrom exploit targeting Apple devices powered by A5 through A11 bionic chipsets (stretching from the iPhone 5s to the iPhone X). Because the vulnerability resides in the read-only memory (ROM) allocated during the device manufacturing process, Apple cannot patch it via software updates. The Apple Wiki
: The Windows operating system blocks the precise USB driver modifications required to execute the checkm8 exploit natively.
As the computer turns on, spam your motherboard's Boot Menu key (usually F12, F8, F11, or Esc depending on the manufacturer). Select your USB drive from the list. 4. Run the exploit Execute the jailbreak. checkra1n 012 1 beta windows download portable
Technical Paper: The checkra1n Jailbreak and the Windows Compatibility Problem 1. Introduction
Click Start . The tool will automatically guide your device into Recovery Mode (the screen showing a computer and cable). The Apple Wiki : The Windows operating system
For newer iOS versions, developers have packaged lightweight, bootable USB environments specifically for checkm8-based jailbreaks. Get a clean USB flash drive (at least 4GB). Download a trusted tool like on your Windows PC.
Experimental support for iOS 14 on A10 and A11 devices (iPhone 7, 7 Plus, 8, 8 Plus, and iPhone X). For A11 devices, users must skip BPR check and disable their lock screen passcode/Touch ID/Face ID. For A11 devices
Here are the two safest methods to run checkra1n 0.12.1 on Windows hardware.