Upgraded to 3.1.3 but NOT by choice! 3GS new bootrom, my 3.1.2 is on cydia..question

[Chad711]

Long story short, had to go into apple to get my phone to work. Was getting numerous errors when trying to restore, any way what is done is done. They restored it and put the red headed step child 3.1.3 on my phone! =(

My questions is can I get back to 3.1.2 because I backed up on Cydia previously? I am clueless as to what that did for me when i did it but it was recommended on Cydia so I did it.

Am I saved? Can I get back to 3.1.2 because I backed up on Cydia? If so how do I do this?

I have a 3GS on the new bootrom which requires a jailbreak on restart...

thanks

[StealthBravo]

If your SHSHs are on file with cydia then yes you can downgrade

[Chad711]

Can you explain how this works? What are SHSH's?

I just recall backing up on Cydia because it recommended it. So I am assuming this is the same thing you are refering too?

I'd like to do this so any help would be great

[retetetet]

I backed up when Cydia asked me.
Put my Iphone in DFU mode like all the guides say.
Added Saurik's link to my hosts file.
But still nothing.. it won't work

[Melech518]

Caching Apple's Signature Server - Jay Freeman (saurik)