#Redsn0w 4.2 1 install
The jailbreak hack, released on Tuesday, lets iPhone, iPad and iPod touch users install apps that. Obviously this can be a serious nuisance.Įxpect both of these caveats to be addressed in time, although there is, of course, no guarantees as to when. With iOS 4.2.1 available for only a day, the iPhone Dev Team has already released redsn0w 0.9.6b4. Since Cydia included in this version of Redsn0w is not compatible with iOS 4.2. Select that you want to Install Cydia, and click Next. The recently released Redsn0w 0.9.6b3 can jailbreak all iOS based devices including the new A4 devices like iPhone 4, iPad and iPod touch 4G. Launch redsn0w 0.9.6 and direct it to the iOS 4.1 IPSW file. This means that whenever you reboot your device, you have to physically have it connected to your Mac or PC with the jailbreak software running otherwise, it'll boot back up without the jailbreak in place. Update/restore to iOS 4.2.1 GM firmware using the IPSW. Secondly, on newer devices (specifically iPhone 4, newer model iPhone 3GS, iPod touch 3G and beyond, and iPad) this is a so-called tethered jailbreak. This will give your phone all the creamy goodness of 4.2.1 but keep the old, unlockable baseband software in place. If you rely on carrier unlock, or if you think you might ever come to rely on it, you should always stay away from iOS updates until one of the dev teams supplies a tool to create custom IPSW files.
#Redsn0w 4.2 1 update
One, the tool itself doesn't work on iOS 4.2 two, if you allow iTunes to update to the newer versions of the baseband software in 4.2, then it might never work again on your phone. Firstly, if you use the ultrasn0w tool to unlock your phone (so you can use it with any carrier), then you have two problems. Redsn0w jailbreak supports upto iOS 5.1.1 as untethered jailbreak and iOS 6.0.1.
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