Hi Guys, Do anybody had this situation occur? this morning, I found my phone displayabnormal - there hv no installed program icons on the display after push the puzzle to unlock the phone. there hv some vibration when I touch the cell phone display and a pop up" the process com.sec android app. twlauncher has stopped unexpectedly, pls try again" showed up. I could dial out, but could not get any phone call from other. I tried to take out the battery and put it again, this situation still continuous. Do somebody can tell me how to slove it? Thanks & appreicate Eric!