However, because checkra1n is a semi-tethered jailbreak, the device becomes unjailbroken after a reboot, requiring the tool to be re-run each time—but without needing to reinstall tweaks.
However, as with any beta software, there might still be some issues or bugs that could arise during use.
: Provides a wide range of compatibility [2]. checkra1n 0.12.4 beta windows
Because the checkm8 exploit requires low-level USB communication, the developers found that Windows drivers and restrictions made a native Windows port too unstable and difficult to maintain. Consequently, the official website has never hosted a Windows executable file.
This indicates a USB controller communication issue. Disable AMD IOMMU or Intel VT-d in your PC BIOS settings, or switch between AMD and Intel computers if available. However, because checkra1n is a semi-tethered jailbreak, the
: Version 0.12.4 resolved many "Error -31" and "Error -20" issues that plagued earlier 0.12.x builds [5.1, 5.5]. Semi-Tethered : If your phone dies or reboots, you
If you want to try it yourself, avoid "Official Windows .exe" scams. Use this verified method: Download the ISO : Get a 0.12.4-based ISO like Flash to USB to flash the ISO to a USB drive [5.1, 5.6]. Boot from USB Disable AMD IOMMU or Intel VT-d in your
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)
Use checkra1n 0.12.4 Windows only if you are on iOS 14.x. If you are on iOS 15 or higher, switch to Palera1n-c for Windows.