Samsung E770 hard reset
Use this method to hard reset your Samsung E770 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.
You need to enter the E770 phone password. The password is preset to 00000000
Menu > Settings > Reset settings
To access Menu mode, press <Menu> in Idle mode.
Use this menu to reset the phone’s settings you have changed.
1. Press [ i/OK ] to select the setting categories to be reset.
2. Press <Reset>.
3. Press <Yes> to confirm the reset.
4. Enter the phone password and press <OK>.
If you know the hard reset using buttons / keys, pls leave a comment. All comments are welcome! :)