I've been holding off on posting a new thread about this, because I figured I wouldnt be the only one that wants to know this... So I have been searching online, and on the forums, but I still can't find a definite answer. I have also read ALL of the "So you accidentally upgraded to 3.1.3...", "Is your phone jailbreakable...", "Jailbreak Matrix" stuff... But I dont think any of those address the people that are already jb. I had a 3gs on 3.1.2 and I started having the common blackra1n/blacksn0w problems like signal drop outs, wifi stuff, etc. So, Im on a PC and dont have access to a Mac to use PwnageTool... So I figured sn0wbreeze couldnt be that bad, and decided to make a custom 3.1.3 so that I could start over with a new jb, and I would avoid blackra1n as much as possible. So I did it. I am now on sinfuliphone's custom 3.1.3, with the 5.11.07 bb. And I really dont have many complaints about the jb, but I think I'm still having blacksn0w problems from the previous jb. I just want a reliable jb, that doesnt give me the stupid signal drop problems. And I realize how much I miss my native tethering from 3.1.2. So, I want to know if since I am already jb on 3.1.3, if I can successfully dowgrade to a 3.1.2 custom fw? I dont have SHSH's for the 3.1.2, but the phone is pwned. I dont care about my unlock anymore. I am with ATT, but I thought that later down the road an unlocked phone would be nice for resell... but it sounds pretty promising that we'll see a new unlock for the new bb in the near future. What I would love to do would be to restore/upgrade the bb to a more reliable (non-blacksn0wed) bb, and get back to the 3.1.2 fw. I did notice this post http://forums.macrumors.com/showthread.php?t=882558 about restoring the bb... which I would be fine with. So... Is it possible for me to get back to 3.1.2, and restore my bb? I do have an old bootromed 3gs. Thank you for any help.