a few days ago i tried to upgrade my mp3 opayer but it killed it

so information about my mp4 player is
ASAHİ MV-113 (i think it is only in turkey)
board : MP-693C-SL Main V1.3
ram samsung 619
atc2085w
it has 512 mb ram and look like i-pod nano,
i am trying different firmwares, i am sure i found true one but i read something which is dump.bin
what is dump.bin
at guide there is "after install firmware upload your dump.bin" i have no dump so what am i gonna do?
i remember my firmware version lie 3.5.35
please help me for recovering my player i am keep on trying different fimrwares..
thx to all of you