In the middle of the day, suddenly the keyboard of my laptop together with all the surrounding buttons (volume etc.) stopped working! After the reboot, as the ESC button (it enters BIOS) was not responding while starting the computer, it seemed like a hardware problem. Damn, I have work to do! – I thought.
Hp TouchSmart tx2 1050ew
Luckily, my notebook is a tablet, so I could use touchscreen keyboard. I was about to look for the instruction how to remove the keyboard from the notebook. Imagine what was my relief when I found the solution: HP Touchsmart TX2 keyboard failure (and the cure) at Laurent Bugnion blog. He had exactly the same problem and got help from HP support. The cure is simple:
Unplug the power and remove the battery.
Hold the power sliding button for about 3 min (yeah, this is painful).
Still holding the power button, plug the power cable.
Release the power button and turn on the computer
As I’ve read elsewhere, the notebook has hardware shipping keyboard lock. It seems it has been somehow reactivated during my work. It is just enough to discharge all capacitors and that’s it – the lock removed, keyboard working like a charm.