I apologize if this is posted somewhere else, but the search functions of this site was not working at the time of posting.
I have a 3GS with 4.3.2 and BB 5.16.02 that I am going to sell because I cannot unlock it. It is jailbroken. I wasn't sure what I should do to clear it. I tried resetting it from inside the phone but it froze. I'm not sure if I should just restore and update to stock iOS 5 to clear everything, or try to clear everything another way to keep the jailbreak for selling purposes. The tutorials I've found involve clearing the entire filesystem folders and then restoring, and I didn't know how to keep my jailbreak doing that. Thanks a bunch!
Well, now you know trying to reset all settings on a jb device will send it into a boot loop.
You need SHSHs to restore to 4.3.x, or you can restore to 4.1 without SHSHs. Or you can update it to stock 5.0.1 as well. But if it's a jb you want to keep on it when selling, I'd imagine you don't want a tethered jb on 5.0.1. So I suppose stay on iOS 4 to keep the jb untethered.