Blizzard, the developer of iOS 9 jailbreak is reportedly working on an iOS 15 jailbreak via checkm8

Blizzard, the developer of iOS 9 jailbreak is reportedly working on an iOS 15 jailbreak via checkm8

By N.L Tayoh
Date Publish September 13, 2022
Blizzard, the developer of iOS 9 jailbreak is reportedly working on an iOS 15 jailbreak via checkm8

 Blizzard, the developer of iOS 9 jailbreak is reportedly working on an iOS 15 jailbreak via checkm8. A new iOS 9 jailbreak was released this year at the beginning of Summer for older devices. Under the name "Blizzard" this tool was developed by Geosn0w. While the developer was rather focused on "old" devices, he is now turning to iOS 15 & iPadOS 15. Good news that should put some pressure on our friend CoolStar who is taking his time for Cheyote.

It was through a Twitter thread that GeoSn0w felt that more people needed to focus on iOS 15. Indeed, Cheyote aside, we have no news from the checkra1n or unc0ver teams.

GeoSn0w went on to explain that he is now looking into the checkm8 bootrom exploit - the same exploit used by the checkra1n tool - in an attempt to perform an experimental no-root jailbreak for A7-A11 devices running iOS 15.0-15.6 .1.

For those unaware, A7-A11 devices include phones ranging from iPhone 5s to iPhone X, tablets ranging from iPad 2 to iPad 7th generation, and iPod touch 6th and 7th generation.

For now, GeoSn0w expects the jailbreak to support SSH initially, and possibly add support for tweaks if successful. Unfortunately, one of his messages reveals that he is not sure he can do this with his current skills.

GeoSn0w still tweeted about the progress of the project, including a splash image of Blizzard's modified Ramdisk and Kernel on iOS 15.1.

Here's what we know as of the progress:

  • The checkm8 exploit works on iOS and iPadOS 15 and 16.
  • AMFI/Codesign has been successfully patched at the kernel level.
  • An SSH-compatible Ramdisk has been built.
  • The root filesystem was successfully mounted.

Important points still need a lot of work, such as:

  • Implementing sandbox fixes
  • Implement kernel-level fixes
  • Work on a bootstrap
  • Test and get tweaks, injection and package managers work.
  • Patching other aspects of the jailbreak

Like any jailbreak, this is a very difficult procedure that takes a long time before it can be tested and released to the general public. With that in mind, GeoSn0w makes no promises to the community. Although he tries to perform a jailbreak, he does not guarantee anything.

If you have a newer device, you will have to look for the next Cheyote jailbreak from the Odyssey team anyway which will support more devices.