Hi!
I have the same probleme as
hellboywb ! i have a similar player in look.
I tried alot of firmwares but wthout any full result, my player firmware is 3.5.37, now its working with other version 3.5.35 which i've extracted it from a plyer looks similar as a dump.bin file, well this last firmware made my player buttons work realy good as usual, but it made it has a white light screen with tow black horizontal black lines, still searching for new things to try
well my player board is different ( HLD 2006-06-28 ) it looks as the picture i made