When the firmware folder is open do not copy a compressed .RKW firmware file into the firmware partition it just will NOT work.
You need to copy 4 folders containing the firmware only, named thus:-
APPDATA
RESOURCE
SYSTEM
SYSTEM00
There are 3 downloads with the correct folders in ready here, try each 1 and reboot your player until you find 1 that works:-
http://www.mympxplayer.org/rockchip-...-pm-df907.html
http://www.mympxplayer.org/rockchip-...-pm-df906.html
http://www.mympxplayer.org/rockchip-...706-df897.html
More information on this is here:-
http://www.mympxplayer.org/firmware-...s-vt10856.html
Good Luck! :wink: