[knob]

Does your player still play music? and can you get it into upgrade mode?

It 's important that you only use the version of ConsumerUpdate that belongs to your player.
It contains the the base operating system that belongs to your player hardware and your firmware sits on top of this.

these files are the "RockUpdate*.img" image files.

If you have a copy of consumerUpdate that comes on cd with your player use that. and if you can find a firmware that will load into your version of consumerupdate and it is the same screen size try that.

I suspect that the firmware that you downloaded is ok it just isn't right for your player, it's very risky changing the firmware on a Rockchip player as very little is known about them yet, hope it works for you.