This release is a beta preview and as such should not be installed on a primary device.

What’s new

Bug fixes

This release squashes so many bugs we couldn’t keep track of them. Sorry bugs…

Other changes

• Support for Linux has arrived! See below for more information.
• Introduces webra1n (see below!).
• Low-level patching is now handled by our all-new pongoOS, engineered from the ground up for flexibility. More news on this front soon!
• Adds a whole new CLI, built around ncurses, which now supports FastDFU.
• Adds a new --version flag to the CLI for debugging purposes.
• Adds a new option in the GUI and CLI which allows for custom boot-args to be set.
• Adds an option to skip version checking for new iOS and iPadOS versions which haven’t yet been officially tested.
• Added support for iOS and iPadOS 13.3.1.
• The checkra1n app no longer requires internet to open.

Known issues

• The Apple TV 4K will produce a -20 error, even on a successful jailbreak

Other known issues are available on our issue tracker.

Linux Support

This is the first checkra1n release which adds support for linux. More information on installing the Linux version can be found here.

Known issues

• The exploit may not work as reliably on some devices, such as the Raspberry Pi Zero and Raspberry Pi 3.
• When trying to jailbreak multiple devices, only the first attempt will succeed. Workaround: relaunch checkra1n after every jailbreak attempt.

webra1n

Webra1n is an experimental web based UI for checkra1n, broadcasting ncurses - the terminal based ui - right to your browser and allowing headless devices (such as the Raspberry Pi) to present an interface over the network.

We advise to use it locally or behind a password protected wifi network/proxy.

Unsupported platforms

This beta is only available for macOS and Linux. Work is ongoing to support Windows, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is a beta preview and as such should not be installed on a primary device.

What’s new

Bug fixes

• Fixes an issue which prevented the GUI from detecting changes in device modes
• Fixes an issue that caused the GUI to hang when jailbreaking some iPad models

Other changes

• Add inital Apple TV 4K support
• Purge OTA updates on boot
• Add support for iOS 13.3
• Remove libimobiledevice as a dependency
• Properly handle situations where there’s no internet connection available while bootstrapping tvOS
• Add a Control Center shortcut for the tvOS loader app

If you are experiencing the -20, please rejailbreak with the no-substrate mode option checked in the app, and see if removing tweaks resolves your issue.

Known issues

• The Apple TV 4K will produce a -20 error, even on a successful jailbreak

Unsupported devices

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Linux (eta son) and Windows, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is a beta preview and as such should not be installed on a primary device.

What’s new

Bug fixes

• Fixes support for the iPad 6th Generation
• Fixes an issue where A7 devices would report an error code on success
• Fixes an issue where jailbreak app icons would show up on the boot after using loader’s “Restore System” functionality
• Makes the loader app more resilient to errors occurring after a long uptime
• Fixes an issue where Loader and Cydia would fail with a no internet connection message on Chinese iPhones
• Fixes an issue where the the iPad Pro Smart Keyboard would disconnect
• Fixes an issue where fast charging did not work

Other changes

• Add support for jailbreaking Apple TVs from within the same app
• Added support for the iPad 5th Generation, iPad Air 2nd Generation the iPad Pro 1st Generation
• Added support for iOS 13.2.3
• Re-engineered the command line interface from the ground up
• Drastically improved loader’s speed
• Restructured loaderd and friends into separate launch daemons to survive userland reboot and removed insult from daemon name
• Export kernel base and other useful things for developers (see jbctl for details)

If you are experiencing the -20, please rejailbreak with the no-substrate mode option checked in the app, and see if removing tweaks resolves your issue.

Unsupported devices

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Linux (eta son) and Windows, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is an early beta preview and as such should not be installed on a primary device. We strongly recommend proceeding with caution.

What’s new

Bug fixes

• Fixes an issue where the user may be signed out of their Apple ID
• Fixes an issue that caused MobileSubstrate initialization to be delayed
• Detect a case where the user may have an OTA update downloaded, which caused issues for some users

The following issues are caused by incorrect DFU mode entry, please make sure to follow the instructions in the UI:

• An issue where the taptic engine did not work on some devices
• An issue where biometrics did not work for some users
• An issue where the touch screen became unresponsive for some users

Battery settings panel issue: We have investigated this issue extensively and found that some tweaks and libraries which some tweaks depend on cause this issue.

Other changes

This update includes a new fast DFU sequence. Entering DFU mode should now be safer and more reliable.

The loading mechanism for substrate has improved in this update, which improves the stability of the device.

If you are experiencing the -20, please rejailbreak with the the no-substrate mode option checked in the app, and see if removing tweaks resolves your issue.

Unsupported devices

checkra1n will eventually support all devices between the iPhone 5s and the iPhone X, however, this beta lacks support for the following devices:

• iPad Air 2
• iPad 5th Gen
• iPad Pro 1st Gen

Support for these devices will be added in a later release.

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Windows and Linux, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is an early beta preview and as such should not be installed on a primary device. We strongly recommend proceeding with caution.

What’s new

This build is a revision of 0.9.3, which fixes the following issues for real:

• Fixes an issue where biometrics did not work for some users
• Fixes an issue where the touch screen became unresponsive for some users
• Fixes an issue where the loader app may not have appeared on the homescreen
• Fixes an issue where the iPad Smart Keyboard did not work
• Fixes an issue where the fast charging functionality did not work on some devices
• Fixes an issue where the taptic engine did not work on some devices
• Detect a case where the user may have an OTA update downloaded, which caused issues for some users

The loading mechanism for substrate has been rewritten from the ground up in this beta to improve the stability of the device.

This beta also adds an option to boot into no-substrate mode. To utilize this functionality, check the no-substrate mode option in the app.

Unsupported devices

checkra1n will eventually support all devices between the iPhone 5s and the iPhone X, however, this beta lacks support for the following devices:

• iPad Air 2
• iPad 5th Gen
• iPad Pro 1st Gen

Support for these devices will be added in a later release.

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Windows and Linux, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is an early beta preview and as such should not be installed on a primary device. We strongly recommend proceeding with caution.

What’s new

• Fixes an issue where biometrics did not work for some users
• Fixes an issue where the touch screen became unresponsive for some users
• Fixes an issue where the loader app may not have appeared on the homescreen
• Fixes an issue where the iPad Smart Keyboard did not work
• Fixes an issue where the fast charging functionality did not work on some devices
• Fixes an issue where the taptic engine did not work on some devices
• Fixes an issue where battery settings did not load for some users
• Detect a case where the user may have an OTA update downloaded, which caused issues for some users

The loading mechanism for substrate has been rewritten from the ground up in this beta to improve the stability of the device.

This beta also adds an option to boot into no-substrate mode. To utilize this functionality, check the no-substrate mode option in the app.

Unsupported devices

checkra1n will eventually support all devices between the iPhone 5s and the iPhone X, however, this beta lacks support for the following devices:

• iPad Air 2
• iPad 5th Gen
• iPad Pro 1st Gen

Support for these devices will be added in a later release.

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Windows and Linux, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is an early beta preview and as such should not be installed on a primary device. We strongly recommend proceeding with caution.

What’s new

• Fixed an issue where the Apple Watch would not receive notifications while jailbroken
• Improve reliability of entering DFU mode
• Fixed an issue where checkra1n could not be used on macOS 10.10

This beta adds an option to boot into no-substrate mode. To utilize this functionality, hold the volume-up button when the apple logo appears until the device finishes booting. From there you’ll be able to uninstall any tweaks causing you issues and reboot to get back to a normal jailbroken state.

Unsupported devices

checkra1n will eventually support all devices between the iPhone 5s and the iPhone X, however, this beta lacks support for the following devices:

• iPad Air 2
• iPad 5th Gen
• iPad Pro 1st Gen

Support for these devices will be added in a later release.

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Windows and Linux, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is an early beta preview and as such should not be installed on a primary device. We strongly recommend proceeding with caution.

What’s new

This beta fixes multiple bugs, including:

• An issue where the loader app would crash when installing Cydia on iPads
• A crash when the macOS language was set to anything other than English
• An issue where iPad Minis would not work with the GUI
• An issue with the scp binary not working as expected

This version also improves clarity of some errors, specifically the -20 error, which now offers guidance on how to resolve it.

Unsupported devices

checkra1n will eventually support all devices between the iPhone 5s and the iPhone X, however, this beta lacks support for the following devices:

• iPad Air 2
• iPad 5th Gen
• iPad Pro 1st Gen

Support for these devices will be added in a later release.

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Windows and Linux, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.

Important information

This release is an early beta preview and as such should not be installed on a primary device. We strongly recommend proceeding with caution.

Unsupported devices

checkra1n will eventually support all devices between the iPhone 5s and the iPhone X, however, this beta lacks support for the following devices:

• iPad Air 2
• iPad 5th Gen
• iPad Pro 1st Gen

Support for these devices will be added in a later release.

Support for the following devices is experimental, and may require more attempts than usual:

• iPhone 5s
• iPad Mini 2
• iPad Mini 3
• iPad Air

To test on these devices, run the checkra1n app with ./checkra1n.app/Contents/MacOS/checkra1n_gui - to run the CLI.

Reliability on these devices will be improved in future releases.

Unsupported platforms

This beta is only available for macOS. Work is ongoing to support Windows and Linux, which will be added in a later release.

Package managers

At the moment, checkra1n only supports installing Cydia. Support for other package managers is coming soon, and will not require a checkra1n update.