Holy Cow,

my head hurts...anyways here's my problem

Had an iphone 3G on 4.1 with BB 6.15.00 but wanted to downgrade to 3.12 to make it faster (as it was very slow)

I downgraded it and rejailbreaked it but now cydia gets stuck on loading data so I can't jailbreak my base band.

What do I do?

I have no experience with SSH and all that stuff that I keep seeing after looking through an hour from google and you tube.