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I tried to disconnect and connect the power socket and plugged it to a charger and waited 15 mins then suddenly a charging logo appeared for 15 seconds then it disappeared. as soon as i powered my tablet it only shows the acer logo. i tried holding the volume up and power button, it only takes me to android system recovery. what can i do to fix this

Sounds like you need to replace the battery. http://www.ebay.com/sch/i.html?_odkw=acehttps://www.youtube.com/watch?v=An6H4NBw