quan , your player would be using the v9.xx series firmwares here
http://www.mympxplayer.org/actions-9...ware-dc37.html
As there is no way to tell which firmware would work with your player, your only solution is to try each and every firmware for your screen size until you get a working one. However, as the firmware extraction tool currently only supports upto v9.0.43, there is a shortage of v9.xx firmwares.