my sony LY-88 ( sunplus 3052A ) is died pelase help me

[thenorthstar]

hello,now my mp5 Sony LY-88 is died.
black screen and i can't upgrade firmware ,my pc do not detect it ,the battery charger too,and i tryed adfu method no thing, tryed to find combination of button like ok+a or esc or down
i tryed al combination but black screen.and "Unknown Device" message in the device manager and do not detect it.

CHİP: SUNPLUS SPMP3052A-HL 171
FLAŞ :HY27UT088G2M
BOAD ID: PMP-703-V11.00(connect)

[img=right:36bf177bb2]http://bbs.mydigit.cn/attachment/Type_jpg/87_175783_638badf1f51ba8b.jpg[/img:36bf177bb2]
[img=right:36bf177bb2]http://bbs.mydigit.cn/attachment/Type_jpg/87_175783_d9ba9e5160322ec.jpg[/img:36bf177bb2]

[Zulu007]

Just push the M-Button whike connecting tot he usb .