MP4 died on stand-by plzz help
 

Hi.
i`ve got a big problem my new ipod nano like 512mb mp4 just became dark in stand-by.I think the software crashed or something.I managed to get the chip and memory code:

ATJ2091H F8247FA 591

HYNIX
HY27UT084G2M
TPCB 639AA
When i connect the mp4 it detects it as USB 2.0 (HS) ADFU Device
When i try to upgrade the firmware it says that this is the recovery state, please select the firmware file for recovering please(but i dont know which firmware to use...i`ve tryed some but it freezes about at 20%).
Please help me as soon as posible.