Has anyone had a problem with the 1st generation gizmopal giving you a message that it's reached high temperatures and will shut off? I got this message on my 1st gizmopal and I find it hard to believe that it could get so hot sitting in my son's backpack in the classroom. Verizon tried to troubleshoot and ended up sending me a replacement unit. Now I get the same overheating message with the 2nd unit. What's frustrating is that you cannot turn the band back on from the app. So the unit is useless. I called Verizon again and they directed me to call LG. I called LG and they said that this is a known issue with the gizmopal and they want me to send the unit to them for repair. Personally, I would like refund but they said that was not possible.