mark2, Your player is stuck in a boot up loop. It starts to boot then hits a problem then resets. The fact that the upgrade tool reports a success is because it loaded the firmware without any problems it does not mean that the firmware is suited to you player.
To kill the reset loop I suggets you use the Dead Player Recovery Guide to reset you player. You will then need to load a full version firmware to take it out of recovey mode so you can try some of the other 9 series firmware.
http://www.mympxplayer.org/dead-play...ide-vt567.html