Checkra1n needs Apple’s USB drivers to communicate in DFU mode. Install the latest from Apple’s website (not Microsoft Store version, as it lacks certain drivers).
For years, the jailbreak community has held the tool in high regard. Unlike traditional software exploits that patch the iOS kernel, checkra1n leverages a hardware-level bootrom vulnerability (dubbed "checkm8"). This makes it unpatchable by future iOS updates for all supported devices—a holy grail in the world of iOS customization. checkra1n 0.12.4 beta windows