Hi guys I have a Samsung GII with jellybean OS which has GMail installed as default. Recently this default GMail stop functioning, at the same time numerous installed and pre-installed Apps also start to stop. I am thinking of doing factory reset like reinstall the OS in windows. It seems you can do it as a soft reset from the OS or do a hard reset from the 3 hard buttons. Appreciate help to these questions Is there any difference in the two methods? What happens in the reset, does it mean that it will reinstall the OS from the stored installer? In window the source can be stored in the harddisk or DVD, where is it stored in the mobile? I presume the OS is installed in the memory and the above failure means that the system in the memory is corrupted, is this correct?