iPhone How to keep 4s under 5.1.1

[lapocompris]

I want to buy a used iPhone 4s under 5.1.1. Will I be able to save to my computer and restore to 5.1.1 in the future ?

 

[labman]

no unless you keep it at 5.1.1 and don't upgrade to 6.0.1. even if the person saved shsh blobs it can not be downgraded. I kept mine at 5.1.1 and my jailbreak that is the only way.

 

[lapocompris]

I mean if I jailbreak the phone under 5.1.1 and should anything goes wrong, could it be restored if there is no saved shsh blob ?

 

[TriJetHero]

Nope, you need the blobs to re-restore

 

[lapocompris]

So I need to find a phone that is already jailbroken.

 

[labman]

Keep in mind for the 4s you need shsh blobs then you can reinstall 5.1.1 using the blobs. However if you update to current firmware you will not be able to Downgrade back to 5.1.1 at this time.