different keys have hard reset in android tablet PC's
u can try like this method
- volume down + home button + power button
- volume down + power button
- volume up + menu + power button
- volume up + power button
- volume up + cam +power
- volume up + lock button + power
If this u hard reset not success than give here Ur android PC full details
- tablet brand
- modal
- good quality image
- tablet how may inch ( 7or 8 or 10 )
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