Why does my one respond to the below screen touch options?

[AC Question]

why does my htc one respond to the below screen touch options?

all the side buttons work and even the center touch screen works except the lower
bottom options that give lights are the only ones that don't work.

 

[belodion]

Welcome.

It may be a failing digitiser. Nevertheless, try a Cache Partition wipe to see if that helps.
Also, there are various apps in the Play Store that will add screen navigation buttons to the screen when the bottom ones fail.

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