Why doesn't the back button work on my Galaxy Edge?

[AC Question]

back button dont work on my galaxy edge

Sometimes my back button works and sometimes it does . why?

 

[B. Diddy]

Re: back button dont work on my galaxy edge

Welcome to Android Central! Try booting into Safe Mode, which temporarily disables all 3rd party apps. https://support.t-mobile.com/docs/DOC-14748

If the problem disappears in Safe Mode, then something you installed is causing the problem. You may have to uninstall apps one by one until the problem disappears. If the problem persists in Safe Mode, then it's more likely to be a hardware or firmware problem.