M6 doesn't turn on after placed M6.EBN and resource.bin to root directory

I bought this player this morning . It come with firmware 2.0.3 , it worked perfectly after i try to upgrade to latest firmware 2.0.4.6. I put the M6.EBN and resource.bin to miniPlayer's root directory then i turn it off.
After that i can not turn it ON anymore, i try to press/hold the power on button several times but no luck....Alway black screen, no responding, no whiteflash line... or whatsoever.

I try DFU but no luck as pressing and hold Power button and M button for 5 minutes but nothing happen.

Any help will be appreciated.

ive got the same problem but when i turn it on it is only a gray cube on the screen ...

@Parra, try upgrading your resource.

i cant do that cause my player doesnt connect to my computer, and i dont understand the dfu tools

Hold M and Power at the same time. Then plug into your player without letting go of the M and Power.