Samsung S3850 hard reset
Turn the Corby 2 phone off. Press volume up button, menu and power button at the same time. Select wipe data factory reset using volume key. All data will be lost!
Use this method to hard reset your Samsung S3850 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.