3GS on 3.1.2 wants 3.0.1 back

[number johnny 5]

I just installed os 3.1.2 and JB'd my 3GS that was orignally JB'd on 3.0.1 with the custom 3.0 ispw. I have an ECID/SHSH on cydia. Can I go back to that OS? 3.1.2 is too buggy and nothing seems to work right. And no matter what I did, I still lost my carrier bundle. I'd like to have all my Cydia apps back too. Only half work or I got back. Is there a guide or thread to do this if possible? I still have the folders on my PC (windows)
I thought 3.1.2 was supposed to fix probs not create them. My battery dies super fast also!! Or was it the JB that caused the prob? I used pwnage tool 3.1.4 with kkiran's custom ISPW.

[Kapolani]

I just installed os 3.1.2 and JB'd my 3GS that was orignally JB'd on 3.0.1 with the custom 3.0 ispw. I have an ECID/SHSH on cydia. Can I go back to that OS? 3.1.2 is too buggy and nothing seems to work right. And no matter what I did, I still lost my carrier bundle. I'd like to have all my Cydia apps back too. Only half work or I got back. Is there a guide or thread to do this if possible? I still have the folders on my PC (windows)
I thought 3.1.2 was supposed to fix probs not create them. My battery dies super fast also!! Or was it the JB that caused the prob? I used pwnage tool 3.1.4 with kkiran's custom ISPW.

Restore to your old firmware then.

Use Saurik's method or tinytss.

[number johnny 5]

Is there any forseeable problems doing that? I did have a custom ISPW.