Hi kinda new here, sorry if this has been previously asked, but any help would be greatly appreciated. I have a jailbroken 3gs running on ATT, that got stuck in a boot loop after running updates from cydia. I've looked around and tried a few fixes, including SSH'ing into the phone, Redsn0w, iREB, and a few other things with no luck. At this point I'm looking to do just a fresh restore and and just starting over. I've found a lot of things on custom firmware's and things telling me not to update to the new baseband. So what is the best option and IOS to restore my phone with. Unfortunately I do not remember what IOS i had on there believe it was 4.2.1 or below just not sure. I did use spirit to jailbreak it. I just don't want to mess anything up, so seeing what the best method for a restore in my situation would be. Thank you.