How to recover?

[over]

Yesterday my player is dead. I was transfering some songs from my pc to the player, at the end I disconnect the player from USB port, the player says, as always, "updating media library" and then... RED SCREEN! Now is dead. Is impossible to turn on, I've tried also with the reset push-botton but nothing happens. How can I do?
My player is a VX747 clone 16Gb with Rockchip RK2706. I've buyed it on Ebay: this is my player:



This is ebay link

And here there is a picture of the inside:




How can I recover it? Wich firmware and mp3 tool I must use?
Please reply, thanks.

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Ok I'm understand, here there is the right procedure. Now the player works but it in download section there isn't the update firmware. Is impossibile for example to view the videos in the original size. I have found the efox firmware and now all is ok. Iwant upload it in download section but how can I do?