phone keeps hitting back button by itself

[AC Question]

My galaxy s3 repeatedly hits the back button whenever I try to open anything on my phone, including apps, texts, internet, etc. I can even feel the touch vibration several times as it exits out of what I just opened. Anyone ever had this happen? The phone itself is fairly new because I had to have it replaced after a bad drop

 

[B. Diddy]

Welcome to Android Central! Do you know if your replacement was a refurbished phone? It's always possible the replacement they gave you was one that was returned to them for some problem which they thought they fixed.

I assume you've tried rebooting, right? You could also try booting into Recovery and clearing the system cache partition: http://forums.androidcentral.com/sa...ing-into-recovery-mode-galaxy-s2-s3-tab2.html

Another thing to try would be to boot into Safe Mode, to see if any of the apps you've installed might be the culprit: Safe Mode - Samsung Galaxy S® III