Hey guys, It's been around a month and a half since I got my Samsung Galaxy S4 and some freezing and rebooting issues have emerged while I browse through Facebook. Could this be a hardware problem on my phone? Or could this just be something up with the phone and the app? So far, I haven't had any problems with other apps like Facebook Messenger, Snapchat or the other games I have. The problem has happened twice on the same app (facebook) Any info/ help? Thanks a lot!