gave it a shot even though I’m sure I had tried this combo as I’ve spent hours messing with this. If the is no charger attached while it boots into Android it will not charge no matter which charger or PC is connected to it. If the charger is connected before boot it will boot into Android and show it’s charging (it actually is) and then you can disconnect the cable and re-connect whenever and it will resume charging like normal. This is probably the strangest – most explainable thing I’ve seen on any phone or tablet. For now I’ll just be mindful to ensure it’s plugged before booting. I’m really hoping someone releases a high-end quality dual boot 9.7″ tablet later this year…