Tethered to Spirit Unlock
I've got a 3GS with a new bootrom running 3.1.2 with a BlackRa1n tethered jailbreak on it right now. I just sold it on eBay and I wanted to run Spirit to make it an untethered jailbreak and unlock it before sending it off to the buyer. I have my SHSH blobs saved on Cydia's servers just in case I need them.
What I've done so far:
I know that I have to run Spirit on a unjailbroken phone so I tried to restore it (using the Shift + Restore method and an old 3.1.2 ipsw) to no avail. It seems to have tried to authenticate my SHSH on Apple's servers. I can't find how to direct that authentication to Cydia's servers where my stored SHSH is.
1)How do I use the SHSH blobs I stored on Saurik's servers to get a unjailbroken version of 3.1.2 on my phone?
2)What should I use to unlock the phone after I get it jailbroken with Spirit?
I did it.
Here's how to redirect iTunes to Saurik's servers if you have your SHSH blobs saved through Cydia.
Unlocking was simple too. I had baseband 5.11.07 so I used Blackra1n. It's a different unlock for each baseband so you're gonna have to know which one you have (Settings > General > About > Modem Firmware). More info here:
Sorry for the weird-*** links, the freaking forum won't let me post em until I have a higher score.