Use this method to hard reset your Samsung E1110 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.
If you know the hard reset using buttons / keys, pls leave a comment. All comments are welcome! :)
Software may be defected.
Samsung recommend software upgrade for your device.
Some models support software upgrade at home by using PC application like PC studio (NPS).
You can find out whether your device support software upgrade at home or not from Samsung
If your device does not support software upgrade at home, contact Samsung Service Center and ask how to upgrade the software.