Okay, let's break down this information about the checkra1n jailbreak tool.
Based on your description:
1. "Tool Name:" checkra1n
2. "Function:" Jailbreak
3. "Supported iOS Versions:" iOS 12.3 up to and including iOS 13.2.2.
This covers a range of several iOS versions within the last generation (likely referring to the iPhone X and newer devices that could run these older iOS versions at the time of release).
4. "Unsupported Devices:" A12 (A12X/A12Z) and A13 (A13X/A13Z) chips.
This means the checkra1n jailbreak "cannot" be used on devices powered by Apple's A12 Bionic or A13 Bionic chips, such as the iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPad Pro (2018/2019 models), iPad Air (3rd generation), and iPad mini (5th generation).
"In summary:" checkra1n was a jailbreak tool that targeted older iOS versions (12.3-13.2.2) but specifically excluded newer Apple silicon devices (A12 and A13).
It's important to note that the landscape of jailbreaking changes rapidly, and this information pertains to a specific tool and its
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利用checkm8硬件漏洞支持的越狱工具终于发布了,支持5s ~ x设备,支持iOS12.3~iOS13.2.2系统。
当前越狱工具处于测试阶段,仅发布了Mac版本,后续将支持Windows和Linux。

根据官网介绍:
当前越狱工具不支持以下设备:
以下设备的为实验阶段,可能需要进行多次尝试:
- iPhone 5S
- iPad Mini 2
- iPad Mini 3
- iPad Air
越狱工具在哪里下载:
checkra1n官网 : https://checkra.in
如何越狱:
此越狱工具需要用到Mac电脑(或windows安装虚拟机)。打开越狱工具,连接设备,然后根据提示将设备处于DFU模式,即可自动完成,如果你的设备不支持,系统会自动提示。

是完美越狱吗?
非完美越狱,重启后需要利用电脑来激活越狱环境,甚至还不如以前的App来的方便。
千呼万唤的ios13越狱终于来了。你们还会在越狱吗?