My TTOne XLS won't turn on unless it's connected to the computer via the USB cable or plugged into the car charger. I can unplug it from the computer or car charger and it will stay on but I can't go the other way. I've noticed that the battery charge symbol shows it charging for a few seconds when connected to the computer but it's fully charged in just a few seconds. This is a relatively new problem and has just been happening the last 2 weeks. I tried a hard reset but that didn't change anything. Everything is up to date from TT Home so I don't think that should have anything to do with it. Anyone have a similar problem or heard how to fix this?