This may not be the issue but just in case...so I had the same issue and I was very disappointed because I really liked my tablet and had only had it for a little over 30 days. We have a lot of gadgets so I would plug my tablet into whatever charger was available plus I didn't know where I had put the ASUS charger. My son likes to let the tablet die and I just couldn't get it to charge so as a last resort before trying to return it I looked for the ASUS charger and noticed it says it puts out 5.2 volts versus the regular 5 volts that an average USB port charger puts out. Apparently that .2 volts mattered because as soon as I hooked it up it started charging.