If a Touch Panel key does not respond normally when tapped, the tap position may not be detected properly.
If two [+] buttons are displayed, tap the second [+] while holding down the first [+].
To stop the adjustment, press the Stop key.
Tap [+] 10 times, then start adjusting a position gap.
Re-operate the screen that did not respond properly before adjustment, and check that the keying position is adjusted correctly.
Adjust the brightness level of the Touch Panel.
Select [Accessibility] - [Brightness Adjustment] to configure settings.