samsung galaxy s4 gt-i9505 harde reset
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
.If you forgot your screen lock combination follow these steps
* Power off your phone
* Press together volume up + home button + power button
* Release your fingers of the phone when Samsung logo appear
* Choose with volume buttons "wipe data/factory reset" and select it with powre button
* Choose "yes" with volume buttons and select it with power button
* Wait untiil format is complete
* Select "reboot"
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