checkra1n
checkra1n is a jailbreak utility for iOS devices (iPhone 5s through iPhone X on iOS 12.0 and later) that exploits the checkm8 bootrom vulnerability to gain root access and install third-party software and customizations. It is used by iOS hobbyists, developers, and power users who want to modify their devices beyond Apple's restrictions. checkra1n runs on macOS and Linux computers and communicates with the target iOS device via USB. The tool provides both a graphical interface and a command-line interface, and the jailbreak is semi-tethered, meaning the device remains jailbroken until reboot but reverts to stock iOS without the checkra1n computer connection.
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1 suggestioncheckra1n officially does not currently work on Apple Silicon Macs, according to the project's own releases page. The latest version available is a beta build (0.12.4) that is Intel-only, and there is no native Apple Silicon version announced in the search results or release notes. The project maintains that it is working on preliminary support for Apple Silicon Macs, but no stable or beta native build has been released as of now. If you are using checkra1n on an Intel Mac, it will continue to work under Rosetta 2 until Apple removes Rosetta in macOS 28 (September 2028), at which point the app will stop launching entirely. Watch the official checkra1n releases page (checkra.in/releases) periodically for news of a native Apple Silicon build. If a native build is not released before September 2028, you will no longer be able to use checkra1n on an Apple Silicon or Intel Mac running macOS 28 or later. Consider checking the checkra1n GitHub issue tracker or community forums for updates on Apple Silicon support, and plan accordingly if jailbreaking iOS devices is critical to your workflow.
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