Try this,
1) Switch the player OFF using the main on/off switch.
2) Hold down the "MENU" or the "PLAY" button and keep it held down.(try the other buttons if these dont work)
3) Connect the usb to the player.
4) Wait for about 10 seconds before releasing the button.
5) You are now in "ROCK USB" upgrade mode!
6) Then just start ConsumerUpdate and upload your working firmware.
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