Please, need help urgently i have my player in recover mode (ADFU) but i can't find the original firmware. my mp4 2.0 inch player is this:

if any1 can tell me the brand or model or can helpme to find the original firmware please answer me.
the firmware that was originally 9.0.48 and chipset is ATJ2097H i think is like the palladium model from uxcell.
i've tried a lot of firmares from this site but no luck. Anyone know if there's any firmware that can boot it? Only black screen.
UPDATE: with mp3 player product tools 4.19 and one of the full 1.8 firmwares i am succed in revive the player. Now i'm able to see it in explorer with unit asigned.
But the problem begins when i want to install a full dump, because after install the dump with mp3 player utilities 4.09 i can't change anything from player. There is a write problem in flash, all settings that i modify don't save. I select spanish language, but when i go to menu, the settings are the same before. And if i go to player in explorer, there are a lot of files of 3gb size and total of 9gb!!!!! and i can't delete them.
i've tried to format the unit, but files are again and again. And when connect to a pc, it asks me again to format unit. Anyone knows what to do???any idea???