Hi, I’m using the WiMX53 jumpstart kit, and when ever I load a touchscreen Qt Application, like tetrix, my touch inputs will always be interpreted wrongly. Meaning that if I touch a certain point on the screen, the cursor will appear on another place. Also it seems that the cursor will follow the opposite of my finger movements. I need help calibrating the touchscreen, but I have no idea how. Thanks a lot!
-Joshua
Hello , Which OS are you using? Is that Android or Linux?
hi joshua,
had nearly the same problem.
asking the support for a method via console i got this idea:
Access console and delete " /data/system/calibration " file .
Reboot device and it will ask for calibration.
additional from me…
howto:
to access the console take the serial cable and connect it to uart1. start a terminal on your (serial) connected computer (eg putty, token2, …) with 115200, 8, n, 1 setting and access the console.
type
rm /data/system/calibration [return]
reboot and you get the touch calibration screen 
greets
gregs