You can also try dr.fone - Android Lock Screen Removal to bypass pattern, PIN, password & fingerprints for Android devices with NO DATA LOSS: https://goo.gl/sEpYPY
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If you forgot your screen lock combination or password follow these steps.
1.Press together volume up + home button + power button
2.Release your fingers of the phone when Samsung logo appear
3.Choose with volume buttons "wipe data/factory reset" and select it with power button
5.Choose "yes" with volume buttons and select it with power button
6.Wait untiil format is complete
Warning! Do this at your own risk! All your phone data (contacts,photos,videos,music,messages,applications,games,files,) will be lost! Please make backup first if you can!
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►Ofiicial blog: http://gsm-abc.blogspot.com
►Ofiicial site: http://www.gsm-abc.com