Toyota Aygo touhscreen is not working

abdullaharslan Registered Users Posts: 3
Apprentice Seeker
I moved to Germany and bought a toyota aygo 2012 model. (I dont speak german yet)
Same with this link:

It has tomtom navigation system but touchscreen is not working most of the time and rarely working.
The device can be opened, menu and map is there but I can not click any button.

Since it worked for a short time, maybe I need to tighten some screws or cables?

Any suggestion is appreciated in advance