I am using samsung a177 and some of its features are still unknown to me. I want to know that if I want to have hard reset on my mobile phone, then what should I do? I tried to go to settings but I did not found any option there. Also I am facing some problem related my message inbox in the phone. When I open the inbox option; it simply does not proceed. Then after I have to switch off the phone and after switching off, it works smoothly. I am not finding the way out.