The message "No valid configuration file found" is displayed on the control panel in the event of a bad download. I've had many a bad download myself. Nothing to be particularly alarmed about per se. Before contacting Philips try the following...
How to initiate a full firmware update?
In some rare occasions it might occur that the software
on the device goes corrupt even preventing one from doing
a firmware update.
In such case, follow the steps below in order to enforce
a full firmware update:
Start the firmware updater.
Undock the TSU9600 and press the Next button.
On the next screen press the Troubleshoot buttton.
Place the TSU9600 into the docking and wait for the Repair
button to enable itself.
Now reset the control panel by pressing the key combination:
Page +, Home and Menu simultaneously immediately followed
by the next step.
Within 2 seconds set the firmware update flag by pressing
the following key combination for 2 seconds: Firmkey 2,
Firmkey 3 and Firmkey 4 (below the LCD) simultaneously
. The control panel will now start up showing a dialog
saying: "Application Firmware Download mode, normal operation
Finally press te Repair button and wait for the update
I had a problem downloading to my TSU9600 a while back ago and all the normal things I usually do did not help. Running the full firmware update was the only thing that got me back in business again.