Checkm8 bootrom jailbreak exploit has been announced which makes iPhone X to iPhone 4S pwned for life. Here are the details.

Just a little heads up to inform you all that the iPhone Phonebook SIM card hacktivation trick has been completely blocked by Apple. The iPhone developer and hacker Sherif Hashim who first found this trick back in July has confirmed this on his Twitter account.

Incase you were wondering why Geohot used a userland exploit from Comex to make Limera1n untethered, it was because he did not wanted to waste his untethered version of bootrom exploit which seems to be more powerful than the exploit used in Limera1n. Both Comex and MuscleNerd has confirmed that Geohot has in his possession a new untethered bootrom level exploit which can be used to pwn future iOS devices like iPhone 5 and iPad 2G for life.

The iPhone hacker (pod2g of Chronic Dev Team) who previously found the 24kpwn exploit has successfully managed to find another bootrom based exploit which can jailbreak all iOS based devices on the latest iOS 4.1 firmware. What this means is that the next jailbreak most probably is going to be based on bootrom exploit which unlike JailbreakMe will enable users to change boot and recovery mode logos among many other things.

Sn0wbreeze 1.7 for 4.0 (for Windows) has been released. This release supports iPhone 3GS (old and new bootrom), iPhone 3GS, iPod touch 2G (MC and non-MC models), and iPod touch 3G. Though iPhone 3GS (new bootrom), iPod touch 2G (MC models) and iPod touch 3G will have to be either on 3.1.2 firmware, or will need to have their SHSH blobs saved for iOS 3.1.2 in order to successfully jailbreak these devices on iOS 4. Also the jailbreak for iPhone 3GS (new bootrom), iPod touch 2G (MC models) and iPod touch 3G on iOS 4 will be tethered, which means whenever you turn off your phone, you will need to re-connect it to a computer to be able to turn it back on.

Ok guys.. Mac version of the guide is now up! (Windows version can be found here) The requirements though as mentioned earlier remains the same. You will need a iPhone 3GS (with new bootrom) on iOS 4, which has SHSH blobs saved for iPhone 3.1.2. Some other important notes about the jailbreak are as follows.

iH8sn0w – the developer behind popular iPhone jailbreak tools such as sn0wbreeze for iPhone 3.1.3 / 4.0, f0recast and BlackBreeze has just written a detailed tutorial on how to jailbreak iPhone 3GS (with new bootrom) on iOS 4. But as I mentioned earlier, there is a little catch to it. 1) it is a tethered jailbreak (whenever you turn off your phone, you will need to re-connect it to a computer to be able to turn it back on) and 2) it will only work for those devices which have their SHSH blobs (ECID SHSH) files for 3.1.2 (NOT 3.1.3) saved on Cydia.

There is a new video going around in the wild which shows iPhone 3GS (with new bootrom) on iOS 4 jaibroken using an upcoming version of Sn0wbreeze. This video has been confirmed by iH8sn0w – the developer behind popular iPhone jailbreak tools such as sn0wbreeze for iPhone 3.1.3 / 4.0, f0recast and BlackBreeze as legit.

I must have been asked this question a zillion times by now via email, twitter and on facebook on “how to check whether or not I have the new bootrom on my iPhone 3GS?”. Since it is very difficult, if not impossible for me to reply to each and everyone individually, I thought posting about it for everyone is the only option.