The checkra1n jailbreak tool was updated to version 0.9.8.1 on Wednesday with support for Project Sandcastle – an ongoing project by Corellium that will allow users to run Android on an iOS handset non-invasively.
Today saw the release of a new bootrom exploit for the iPhone 3GS, an unpatchable vulnerability which gives jailbreakers total control of this device forever.
Although the iPhone 3GS is now very much a legacy device and few users will be actively using them, the rarity of a bootrom exploit makes it worthy of note. There have been no publicly released exploits of this kind since limera1n, which supported only up to the iPhone 4.
For those of you holding out hope that a bootrom exploit has been discovered for newer iOS devices, you’re going to have to keep hoping. That’s because famed iOS hacker, MuscleNerd, has confirmed that no A5+ bootrom exploit exists. A bootrom exploit is extremely desirable, because it means that the device could be permanently susceptible to a tethered jailbreak, much in the same vein as limera1n for pre A5 devices.
The iPhone Dev Team has released RedSn0w 0.9.15b2, which fixes a few items for owners of older devices.
The most outstanding fix is for 3GS owners with old bootroms — RedSn0w 0.9.15b2 brings back untethered jailbreak support for end users who fall into that category.
Most of the changes don’t pertain to owners of newer devices, but it’s always a good idea to ensure that you’re running the latest and greatest version anyway. Take a look inside for the full release notes.