harde reset samsung galaxy gt-s5301

Official site:\r
warning! Do this at your own risk! All your phone data (conts,photos,videos,music,messages,applications,games,files,) will be lost! Please make backup first if you can\r
.If you forgot your screen lock combination follow these steps\r
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* Power off your phone \r
* Press together volume up + home button + powor button \r
* Release your fingers of the phone when Samsung logo appear\r
* Choose with volume buttons wipe data/fory reset and select it with power button\r
* Choose yes with volume buttons and select it with power button\r
* Wait untiil format is complete \r
* Select reboot