I have a T401g. Recently the battery was low and I turned off the phone to conserve power. However, when I turned the phone back on, it shows the Samsung logo, the Tracfone Wireless Service logo, then will shut down for about half a second, then restart the whole process in a never ending loop. I've tried charging the battery, turning on while plugged in - nothing helps. This is the second phone this has happened to - the first one was the same model and problem. I did try turning off the phone and removed the SIM card and the phone will boot into the "No SIM" found screen. Is there a way to do a master reset or something to get this thing to start properly?