sebas_mp,is your player dead?If it still working you don't have to do some upgrading thing cause you'll just end up having a dead player.
Download Link for your firmware:
http://www.s1fw.com/plus/download.ph...lOIFYxLjMucmFy
Upgrade Tools can be found here:
http://www.mympxplayer.org/mp3-playe...ties-dc44.html