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  Press Vol Up and Power Key Press Power Key When Showing Android Logo Select wipe data/factory reset Using Volume Down Key Enter In data/factory reset Using Volume Up Key Select Yes -- delete all user data Using Volume Down Key Enter Yes -- delete all user data Using Volume Up Key Wait 1 Minute For Reset Wipe Data Select reboot system now Using Volume Up                   Lets Enjoy It!

  Step1. Press and hold power key & Volume up to boot up your device then u wil see Step2.Press Volume up button then press Volume Down u will see android logo (No command ) Step3.Press power button Step4.Volume down select wipe data/ factory reset then Press Volume up and do job (Select Button Volume up)  

    1. Press Hold Volume Up & Down 2. Press Power 3. Show Screen Recovery Mode :Volume Up Factory Mode :Volume Down 4. Press volume up to select recovery mode 5. Then select factory data reset.

                                                          Press & hold Volume (-) button then press power button                                          Show Option                                          Select clear MMC                ...