I have a factory unlocked 3G. Previously It's been jailbroken with blackra1n when it was 3.1.2. Recently I've updated to 4.1 jailbreak with redsn0w, and having very slow responce on my 3G, I've decided to downgrade t 3.1.2. I've successfully downgraded back to 3.1.2 and even the baseband stays 05.11.07. Managed to jailbreak with Blackra1n and installed cydia using 3G network. But now I'm having a trouble when I want to download something from cydia, it stays on the msg "Loading Data" for about a minute or so and then it crashes back to the springboard. Is it the blackra1n problem? What should I do?

