-1

I bit the bullet and upgraded to iOS 9.1, and the phone now moves like it's an iPhone 3GS. I can see iOS 8.x is no longer signed, but fortunately I have SHSH of iOS 8.2 saved.

How can I downgrade without losing my warranty? I've heard jailbraking will void warranty, but I guess jailbraking then flashing an iOS version that removes the jailbreak should allow my phone to still be in warranty.

PS: This is not a duplicate of Can I install any iOS version I wish by picking and choosing which firmware to restore?, because it talks about restoring from IOS9 to usinged IOS8 version with SHSH blobs.

Community
  • 1
GANoob4eva
  • 11
  • Jailbreak won't void your warranty, as you can always restore the device to the newest (non-jailbroken) version. – Rob Dec 25 '15 at 12:11

2 Answers2

2

You can't do it, unless you saved your signature while iOS 8 was still being signed. Without a saved signature, there's no way for anyone except Apple to install iOS 8 on any device.

Mike Scott
  • 10,484
0

Jailbreak will prevent Apple from providing you service/support. As mentioned in the other comments restoring to the current iOS will fix that. The main question that hasn't been posed is : "What is the memory storage of your device?" Current versions of iOS have been optimized for upgraded hardware but you shouldn't experience that drastic of a reduction in overall phone performance. The first thing I'd look at is how much storage am I using before the OS.

Justin Henderson
  • 39