It seems like forever since we have been waiting for the release of iOS 10 jailbreak. Luca Todesco has already released his yalu jailbreak, however it is still in beta and unstable. While his jailbreak works on iOS 10.2 in addition to earlier versions on most devices, yalu does not support iOS 10.2 running on iPhone 7 and 7 Plus. The hacker developing the jailbreak recommended that users with the latest iPhones should stay on iOS 10.1.1 if they want to jailbreak.
Now that iOS 10.2.1 has been released and soon Apple will stop signing iOS 10.2, Luca has issued a warning for those iPhone 7 and 7 Plus users who had previously upgraded to iOS 10.2 and were not able to downgrade to iOS 10.1.1 due to signing window getting closed by Apple. According to Luca the best iOS version for iPhone 7 users waiting for iOS 10 jailbreak is iOS 10.1.1 as this version completely works with yalu.
However if you happen to be running iOS 10.2 on iPhone 7 and are thinking of upgrading to iOS 10.2.1, then don’t. iOS 10.2 is better than iOS 10.2.1 and has more chances of getting a jailbreak in the future, as kernel exploit still works on it. Same is not true for iOS 10.2.1 as Apple has fixed the kernel exploit that Luca was using the latest version of its mobile operating system.
So to summarize if you want to jailbreak iPhone 7 or 7 Plus: iOS 10.1.1 is the best. iOS 10.2 is second best as it has kernel exploit, it ‘might’ get jailbreak support in the future. iOS 10.2.1 is a no go.
Even if iOS 10.2 is not supported on iPhone 7, stay on 10.2, since the kernel exploit works on it.
— @qwertyoruiop@nso.group (@qwertyoruiopz) January 25, 2017
Just to be clear, I’ll repeat that 10.1.1 is the best fw for the iPhone 7, but 10.2 is better than 10.2.1 (if you want to jailbreak)
— @qwertyoruiop@nso.group (@qwertyoruiopz) January 25, 2017
The first thing to do is to exercise restraint and keep a distance from the iOS 10.2.1 that Apple has issued this week. It’s fair to assume that the release is packed with fixes that could prove as jailbreak killer so the prudent thing is for iPhone and iPad users to stay where they are – no upgrade moves for now.
But those who made the jump and still want a taste of the next jailbreak release, a rollback remains possible. Version 10.2 is still signed by Apple so downgrading has to be performed now. Once the OS becomes unsigned, there is no turning back.
Saving .SHSH2 blobs for versions 10.2 and 10.2.1 now is also a must-do, as doing will ensure that a door will be kept ajar for a jailbreak opportunity.
As for the folks that decided to take iOS 10.3 beta 1 for a spin, downgrade now and make use of the tutorial shared by WCCFTech on the subject. Going back will the key once Todesco and Grassi finalize their project and release the Yalu iOS 10.2 jailbreak.