It could well be that the charging module (the unit that plugs into your electrical outlet) has given up the ghost. It is well documented on other forums that Asus laid an egg with their charger. If you only have the Infinity tablet and not the keyboard dock, you can try charging the tablet from your computer using the USB plug on your charging cable plugged into a USB outlet on your computer. To charge this way, the tablet must be turned off. It will take longer to charge inasmuch as the USB from your computer is 5 volt and the voltage from the decrepid Asis wall unit is 15. Try charging your tablet with your computer over night. If it works, you need a new charging unit. Check Ebay, you can get a good charger for one third the price that Asus wants for their inferior one. You can read on other forums where people have put their Asus wall unit in a freezer for a half hour or so, and it miraculously works again. There is speculation that there is an over heat device in the wall unit that gets stuck, and the freezer treatment corrects it. It did not with my unit, and I simply bought a superior charger on Ebay. Have had no problem with the charger that I got on Ebay.