What is Checkra1n?

Checkra1n is a utility for checking whether a device is in the right boot mode. It is based on ncurses and supports FastDFU. This tool allows you to define custom boot-args and even detect changes in the device’s mode. While the app does not require the internet to run, it is not recommended to use it on your primary device.


Unpatchable Checkra1n is a new jailbreak which exploits a vulnerability in the BootROM that most jailbreaks do not address. This flaw can be a serious security threat, as it can make it impossible to patch the iDevice. This exploit uses a flaw in the BootROM, the first code that runs when an iDevice is turned on.

This exploit is not available for iOS 15 and earlier versions. But, the Checkra1n team is currently working on a fix that works on iOS 16 and higher. ThisĀ https://iosj.io/checkra1n/ is possible by exploiting a new security feature called SSV, which prevents Apple from patching the exploit with an iOS software update. This exploit is also capable of jailbreaking iOS 16.

Support for Apple TV 4

The checkra1n jailbreak tool is now available for the Apple TV 4. The program supports the fourth-generation Apple TV only, and it requires that you first enter DFU mode before you can use it. Also, you’ll need to be on the same firmware version if you’re using a 4K model.

You’ll find the software on the official website of the jailbreak project Checkra1n. You’ll need to connect the Apple TV to your Mac using a micro-USB cable and follow the steps provided in the software. Then wait for about 5-10 minutes for Kodi to appear on your screen.


If you’ve been considering getting a Checkra1n device for your Android or iOS smartphone, you’ve probably noticed that there are a number of limitations. For starters, the software requires a physical computer. While Android and iOS have different operating systems, checkra1n uses Linux as its core.

It is also not compatible with recent devices. Checkra1n is not compatible with devices released after the iPhone X, which uses Apple’s A11 Bionic chip. Therefore, it’s unsuitable for those who want to jailbreak the latest iPhone and iOS devices. Nevertheless, it’s a useful tool for hobbyists and researchers.