My tsu3000 is approx 3 years old.... some of the hard buttons started being un reliable.. then it started to lose calibration... or would get out of sync with the calibration with days until today it stopped working completely (the touch screen, hard buttons ok).

I read this thread, and as indicated on post 230... if you open it up and do as he says, it does fix the problem. I would say that one of my contacts was off, but I did the pin trick on all four contacts and now it works.

While it was open, I gave it a good cleaning and now all the hard buttons work (cleaned the hard button contacts on the board.

So if your touchscreen is frozen, this is a really easy fix.. took 15 minutes.

Thanks

Foo