Recalibrate

To ensure that where you tap on the screen matches the screen's contents, you may occasionally need to recalibrate.

Tap . The screen will change and show a cross near the bottom left of the screen. Press the stylus in the center of the cross, hold for a moment, then release. The cross will then move to another position. Press, hold and release once again. Repeat this process until recalibration automatically finishes.