New Redsn0w 0.10.0a1
Jailbreak Untethered iOS 8.4.2:
iPhone 6 - 6 plus - 5S - 5C - 5 - 4S - 4 - 3GS ; iPad 4 - 3 - 2 & iPad Air, Air 2, Mini, Mini 2, Mini 3 ; iPod Touch 5G
(07 October 2015 ) - Official iOS 8.4.2 Redsn0w Final Version!!! by @Pod2g
+ Icloud Activation Lock Bypass
- Soon after iOS 8.4.2 appears on Apple’s public servers (i.e. iTunes starts to offer it), Apple will stop signing 8 SHSH blobs.
- If you have an iPhone 6, 6+, 5S ;5C; 5, the basic rule above is really the only rule: you cannot restore back to 8 once the iOS 8.4.2 signing window is closed, no matter what (even if you saved your SHSH blobs).
- If you have an iPad Air, 4, 3, 2 iPad mini with saved 4.x hashes, you can in fact downgrade to that 4.x but you won’t be able to get to 8 once the iOS 8.4.2 signing window is closed (even if you saved your 8 SHSH blobs).
- If you have a device earlier than the iPad Air, 4, 3, 2 you can downgrade to whatever version you want, as long as you have saved SHSH blobs for that version. You’ll need the assistance of geohot’s limera1n exploit with tools like redsn0w to get into “pwned DFU mode” and bypass the downgrade restriction.