1) Don't ask for firmwares!
2) Read the forum rules
3) Read the forum and the main S1mp3 page, there are all the necessary info to get your player working again.
4) Try the "dead recovery guide"
5) Download some firmwares, there are a lot of ATJ 2085 FW's posted in the download area.
6) if we had a firmware, it was already posted except for my 400 9.x.xx firmwares archive that would never be posted.
7) The hynix chip is a NAND FLASH chip, not a RAM chip.

We need to know the Other chip that your player uses (ATJ20xx, Sunplus SPCAxxxx, AK1025, STMP3xxx, Sigmatel... etc.), not the memory, the memory is common to all brands of players, it can be SAMSUNG, Hynix, SANDISK, or a chinese clone.