Why isn't my home button working?

limbo2000

New member
Aug 4, 2015
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Home Button not working

Hi, I have a problem with a LG G3 LS990: The home button doesn't work but the back button is working.
It still does make the click sound and icon highlights, but after that, nothing happens. And the long press does nothing on both.

I did a hard reset trying to solve it, but nothing.

The additional buttons (Quick memo, qslide, and dual window button) do nothing when they are aggregated.
The back button works in every place when reorder.
And it isn't a touch screen failure (upside down the same problem)

What should I do?

Thanks in advance

(Android 4.4.2)