Jailbreak 6.1.3 iOS Untethered Evasion Jailbreak Details
As mentioned above, when Apple released iOS 6.1.3 to the public, the company effectively patched the evasion UnTethered jailbreak. Consequently, if you own an iPhone 5, iPhone 4S, iPad 4, iPad 3, iPad 2, iPad mini or a 5th generation iPod touch, you cannot jailbreak your iDevice on iOS 6.1.3. However, if you happen to have an older iPhone 4, iPhone 3GS or a 4th generation iPod touch, you’ll be able to jailbreak 6.1.3 using a simple Redsn0w workaround – we highly recommendfollowing our in-depth iOS 6.1.3 jailbreak tutorial.
With that said, new iOS-based devices can still jailbreak, so long as they’re running iOS 6.1.2 or earlier and are supported by evasi0n. As with jailbreaking 6.1.3, we advise that you follow the instructions outlined in our evasion 6.1.2 jailbreak guide.
Unfortunately, newer devices are not compatible with the previously mentioned 6.1.3 redsn0w jailbreak, as it employes a hardware exploit that was discovered by Geohot in 2010. The hardware vulnerability, commonly known as the limera1n exploit, only supports the devices that were available when it was discovered, all of which were powered by Apple’s A4 processor or earlier. As a result of product evolution, a number of the devices that were previously supported, including the original iPad, have been phased out by Apple and no longer receive iOS updates.
Furthermore, due to the restore method Apple uses, it’s impossible to downgrade from iOS 6.1.3 to a lower firmware, unless you own an iPhone 4, iPhone 3GS or an iPod touch 4G. When attempting to downgrade an older device, it’s paramount that you have your SHSH blobs manually backed up for the firmware you wish to downgrade to, as Saurik’s automatic SHSH backup service hasn’t functioned properly since evasion’s release.
There’s currently one individual, p0sixninja (quondam leader of the Chronic Dev Team), and a group of hackers known as the evad3rs who are both in the process of developing the next major public jailbreak for future firmwares. A number of our readers have questioned the developers’ motives in waiting until iOS 7 is announced and released before issuing new jailbreak utilities, the answer is rather simple: compatibly. The hackers and iOS security experts, who spend weeks and even months trying to discover incredibly complex vulnerabilities that can be exploited and used in a jailbreak, find it best to wait until Apple releases new devices and versions of iOS before making a jailbreak available to insure maximum compatibility.