conclusion tools - Heat the back of ur device using any method comfortable for u for abt 5-10 minutes this should warm up the battery meaning it can give more strength, then put it into charge straight from the wall, if this does not work it means your tablet needs stronger power because it is fully drained and is getting power than using it on the screen so put it into a 5V2.1A portable charger using only one of the USB ports wait a bit, if this does not work than you are going to have to disconnect the screen from the battery from the back this is so that the power can go straight to the battery. there are useful instructions before me..take a look at those i hope i was useful i'm sorry if i yapped on a bit :), had the same problem and was very frustrating, i came down to all the conclusions so it could be less hard for you guys :)