This works with devices having physical home button:- 1. Press the power button and the home button together for a while, long enough until the screen appears with Android bot and a progress bar which shows that it's formatting the internal memory. With NO physical HOME button:- 2. In case your device does not have a physical home button, press the power button and both the volume keys together for few seconds. 3. Press gently the "reset pin-hole" present generally on a side of Tablet. Use a clip-pin or similarly fine thing to gently push inside to reset your device to factory settings.
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This works with devices having physical home button:-
1. Press the power button and the home button together for a while, long enough until the screen appears with Android bot and a progress bar which shows that it's formatting the internal memory.
With NO physical HOME button:-
2. In case your device does not have a physical home button, press the power button and both the volume keys together for few seconds.
3. Press gently the "reset pin-hole" present generally on a side of Tablet. Use a clip-pin or similarly fine thing to gently push inside to reset your device to factory settings.
Try to visit my blog to see video tutorial
http://pcgadgetdeni.blogspot.com/2013/02/forgot-passwordpattern-unlock-of.html