Samsung Star Deluxe Duos S5292 hard reset
Press MENU > Settings > Reset settings > Select All (or what you want) and select YES
Use this method to hard reset your Samsung Star Deluxe Duos S5292 phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.