Good morning my friends,

I have a sony ericsson k800i.The cell had vodafone firmware and after a lot of reading , I finally done it.I got rid the annoying vodafone firmware and now my phone is just perfect.
After that an unexpected problem occurred..... the green and red keys (answer keys) which are fully functional stopped working. I realize that occurred after flashing.
Is there any way with the R8BF003 firmware (de-branded) to make those (answer keys) operate again?