S7 middle right central button issue

[David Ponzo]

Hi everbody.

For a week I have had a problem associated with the right central button. It no longer works (mechanically there is no problem).
The functionality associated with this is activated as soon as I activate the screen via the top left button.
In addition, the screen is activated at regular intervals (15 seconds) while all activation options are deactivated.
I did a factory reset but nothing worked.

have you ever had a similar problem ?

Thanks