Hey guuuys! (:

I have a iPhone 3G 16gb, which is jailbreaked and unlocked.

After it got Jailbreaked and Unlocked i found that i couldn't call proberbly.
well i can call others and they can call me.
But after i finished talking the screen appears to stay black.
So i can't end the call myself, so i have to await the one im talking to, to end the call.
And when im calling a service which require i press "1" for something, i can't! - Because the screen appears to be black though i have removed it from my ear.

Does anybody know this issuse and does somebody know how to fix it? (:

In advance Thanks!

Best regards