Another firmware to try is this one:-
http://www.mympxplayer.org/rockchip-...219-df898.html
I threw away the disk from my player, it had all the wrong software tools on it, all the right tools you need you can get from this site in the
downloads.
If the buttons don't work it is the wrong firmware, I have had the same thing happen with my player you just need to try another firmware it's not a hardware problem.