cant back up firmware
use rockchip chip
do not use any other firmware - it will break player
just sent 2 players back to dealextreme with similar problems and more (autorun virus on player), not yours but poss from same supplier
read here on the DX product page if you want info
http://www.dealextreme.com/details.dx/sku.8048
very bad players
got full refund
i think is hardware problem
do me a task will you please and check on the player for a file called autorun.ini, use the browser on the player to do this will be in the root of the player
thanks