I've got an odd problem with a previously jailbroken 3G w/ 3.1.3. Basically, I jailbroke the phone using sn0wbreeze and iREB. I restored the phone to stock for a period of time by restoring from iTunes. I've decided I want to re-jailbreak, and it won't work anymore. I've tried:
Jailbreakme.com: Sits on the purple screen, no matter how many times I try the fixes posted online. New versions of sn0wbreeze and iREB: Restore errors when using DFU/iREB, and sits forever on preparing restore before failing when not using iREB. Original versions of sn0wbreeze and iREB: So I've got the original image I jailbroke it with, and the original software, and it has the same results as the new versions.
Awesome, worked perfect. For any future users who find this thread, I followed this guide, but did not use the checked options on step 3, instead left just the default of "Install Cydia".