MEDIASTAR MS-7070 DIAMOND BOOT ERROR

[armigo]

Hello guys,
I was updating my MS-7070 diamond decoder when power suddenly went off. It now only says "BOOT" and does not fully power on.
I did some google searched and found that for some mediast, starsat and tiger models in boot lock, using an update file in a FAT32 USD drive and renaming the bin file to update.bin (or rom.bin, flash.bin, recovery.bin, upgrade.com, ec) and repeatedly tapping the power button (or holding down) would force decoder to recover from USB.
I did these over several day with no luck. I tried all ways of renaming bin file and none gets picked up by decoder, or perhaps decoder does not pick up the USB drive. Am I doing this correctly?

I also found from google, that some decoders fail to recover from USB and so requires a chip flash using a flash dump file.
I hav searched everywhere for the exact dump file for MS-7070 diamond and not found one.

Can someone here help please share the dump file?
Would someone who owns the same model be kind enough to copy for me their flash dump and share?

Plz help.
Armigo