Recently, when I go to the lock screen after the phone has been inactive for a while: 1. The lock screen becomes unresponsive as soon as I try to swipe. The sound will play and the water-rippling animation will play a couple times and then the whole screen goes unresponsive and will not fade out. The clock also does not progress, and waiting any amount of time does not have any result. 2. The black bar on the top of the screen does not show anything, including battery, clock, or widgets/apps that are active. It also froze up at least once when I was playing Pokemon Firered on a Game Boy Advance emulator, I think when it was trying to transition from landscape to portrait display. The only way to get the phone to work again is to either force it to turn off and back on via holding the power button or removing the battery. Please help me out here? I've heard that I might have to do a factory reset, but I'm wondering if there is a simpler solution. Thank you. Update: It seems like Dummy File Generator only made the situation worse, though I might not have been using it correctly. It doesn't freeze at the lock screen anymore that I have seen, only assuming that I have my Wifi turned off and probably assuming I don't have any apps running. If I run any app for too long (this happened with Internet and My Boy! Free GBA Emulator), the app will freeze and I will get an error that the app is not responding, with options to close or wait for the app to do something. If I try to close the app, the screen goes black and eventually I get another similar error indicating that TouchWiz or UI is not responding. I didn't think either of those were good things to close, so I manually powered off and on to restart the phone instead.