iPhone 4 ios4.0 update > 4.1 NOT 4.2

[PsstGreek]

I have iPhone 4 so mine would be tethered

Unfortunately yes. But good news is came out today: http://iclarified.com/entry/index.php?enid=13279

 

[will0407]

brilliant thanks

 

[lokerd]

Exactly. The SHSH are needed to restore when Apple stops signing the firmware. You don't have to be jailbroken to save the SHSH blobs either. TinyUmbrella will save them if you are not or are jailbroken.

I suppose I already know the answer to this question, but can't we get a SHSH from somebody else? Or, better question, why can't it be shared? Linked to serial number of unit?

 

[Max.]

I suppose I already know the answer to this question, but can't we get a SHSH from somebody else? Or, better question, why can't it be shared? Linked to serial number of unit?

SHSH blobs are unique to a device and if another is used it's possible your device will be bricked.

I don't suppose a non-userland jailbreak will be coming soon? I don't think we've had one since 3.1.2, meaning that Custom Boot Logos have been a no-go on 3GS/iPhone 4.