Phone keeps on lagging due to the buttons on the bottom of the screen

[AC Question]

I have an LG Leon. The settings to do anything is with the buttons displayed on the screen. I have noticed that these buttons keep on appearing when I dont touch it or my fingers are near it. This causes my game to usually lag or videos to pause. Can anyone help me with this problem? Its been happening since after I rooted the device, is there any correlation of rooting to this problem?

 

[Rukbat]

With straight rooting? No. All rooting does is add a file (su) and an app (Superuser or SuperSU) to the phone.

The rooting process, however, can add all sorts of junk and viruses to the phone. If you didn't root it by manually obtaining temporary root and copying su to the kernel, there's no way to tell what happened to the phone. (One-click and "flash from SD card" rooting methods all work differently, and what happened depends on which one you used - and only the person who wrote it can tell you what problems it might have caused.)

Flash the stock ROM. If that doesn't clear the problem up, you have bad hardware (which could have been caused by rooting, or it could be unrelated.) If that clears it up, go do XDA Forums for LG devices. Howtos, Development, Hacking, Apps, and more and find out how to root the phone properly.