can I get the SHSH blobs without jailbreak
I've been hesitating to jailbreak my wife's 3GS (with the old boot rom) that is now at 3.1.2 since I don't have the SHSH blobs and if I mess up I end up going to 3.1.3 and can't get back from the baseband update.
But I know that I should be getting the blobs backed up so that when the next release comes out, I can at least restore back to 3.1.3
suggestions? Can I somehow use firmware umbrella to get them without having jailbroken her phone? Or do I jump off without a net and just go?
(I have jailbroken my 3.1.2 3GS also with the old boot rom with PWNAGE and all is fine, I guess I could use that custom restore image, no?)
Re: can I get the SHSH blobs without jailbreak
Yes, you can backup 3.1.3 SHSH without jailbreak. All you need is the ECID (from recovery or DFU mode) and umbrella from firmware umbrella.