I have a 3GS that was jailbroken and was iOS 3.x

For some reason, I went into settings and chose to delete all content and data, or something like that, and now I always get the Apple screen, or it's stuck in Recovery mode loop with the connecting-to-Itunes screen.

It's been like this for several days and I've been busy with finals and projects. Anyway, sn0wbreeze didn't help and neither did greenp0ison. Tried to restore via iTunes and it errors out. I'll post a log as soon as I get on the other PC.

What do you think could be the issue here? Am I missing something obvious?

Thanks in advance!

This is quite a common problem with "erase all content and settings" - it becomes more difficult to solve if you have not saved your SHSH blobs with Cydia (or locally)

Erase all content and settings erases the iOS operating system as well as all your music, apps and settings. Without the OS, the phone is stuck at the beginning of the boot process, looking for an operating system to boot from.

What is your goal? Do you want to reload iOS 3.x (and which specific 3.x.x version?). Is it an old or new bootrom device? What SHSH blobs do you have saved? Identify this information and search around, there are solutions.

Old bootrom - previously jailbroken 3.x with redsn0w, blackra1n, pwnagetool or sn0wbreeze. You can restore a properly made custom 3.x IPSW (made with pwnagetool, we don't recommend sn0wbreeze for iOS 3.x)

New bootrom (or old bootrom but you want to load iOS 4.x) - you MUST have a saved SHSH for the iOS version you want to load (doesn't matter what jailbreak tool you use, you can't bypass the SHSH requirement)

This question has been answered 100s of times here on hackint0sh, you should have searched a bit harder before posting a duplicate thread.

Thread closed. Duplicate.