Interestingly, the touchscreen on my TSU9600 that I've for about 1.5 years just stopped responding an hour ago. The buttons all work fine and the communication to the RFX extender is fine.
After reading this post I've re-flashed the firmware (Version 7.4.22-1.5.20) with no change. Then I flashed the older version in the file section (7.3.3-1.4.5) and still no change.
I believe Lyndel mentioned re-seating the internal connections. Is this something I could do? I replaced the battery 6 months ago, so I can remove the rear cover. Or is there any place someone could recommend locally or nearby that could do the work? I am located in Las Vegas, NV.

Also the screen no longer turns off automatically.