Samsung Jack Downgrade

[Guest pcspecialist]

A few days ago, I upgraded my Samsung Jack from Windows Mobile 6.1 to 6.5 without doing much research. I fully regret it now. Windows Mobile 6.5 is a bit buggy on the Jack (from my experience at least) and some applications don't work on it. I was wondering if I can use the Blackjack II 6.1 rom on my Samsung Jack. If not, is there a Samsung Jack 6.1 rom floating around anywhere? I really want to go back, and I've spent days trying to find it, but had no luck.

Any help is greatly appreciated.

Thanks