pls help

[getamalesh]

i update my mp3 player firmware

lisong LSD 501_02
sdk V35.37
2006_06_03

to

LSD 501_05
sdk: v35.37

but my player is dead now, will you help me to remove the present firmware inseated
in older one,my player is like double disk pendrive now, how should i remove the present firmware? pls advice