Back and Recent Buttons won't function properly

[AC Question]

I'm using a Galaxy S7edge. The back and recent keylight buttons won't stop blinking on once I press one of them. Once this happens, my phone won't stop going back and something is also being touched on the top right corner of the screen. This will keep happening until I turn of the screen in sleep mode. Basically my phone will be unusable when this happens. The only thing to keep this from happening is to use Galaxy Button Lights 2 and set the buttons to "Always On" or "Always Off". I was also able to remove this problem by Factory Resetting my phone but it would only last me about 2 days without the problem (I've reset my phone twice already but it keeps coming back).

 

[anon(238680)]

Welcome to the forum. Couple things come to mind, first being a hardware problem as that would survive a reset as you've said you've done. The other is either an app that is redownloaded after the reset or a recurring firmware problem. Did this behavior start after something happened to the phone, you added some apps, etc?

If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join Android Central.