I have a Lg Cosmos 3 that I plugged in to charge a few hours ago. I returned, answered a text message, and walked away again 10 minutes ago. I came back to check for an answered message and my phone's screen is black other than a random Verizon Wireless logo flashing on the background. I held the power button to try to turn it off or on (I don't know which one it is stuck on right now) and nothing happened. After unplugging the phone, the screen went completely dark and would not respond even after I pulled the battery out and put it back in. If I plug the phone in to charge, the logo comes back up again... I've only had this phone for a few months and can't figure out what's going on.