vstro24, You may need to load a full version firmware then load your backup dump. If your player is still being detected by the upgrade tool you do not need to use the Dead Player Recovery process.
There are some full version firmware here
http://www.mympxplayer.org/full-firmware-dc35.html
It does not need to be an exact match for your player but it will install some neccessary files that are not in your backup.
Use one that matches your players screen size and version number if possible. You may also need to try a couple.
If your player stops being recognised by the upgrade tool then you will need to use the Dead Player Recovery Guide to do a hard reset.