CheeseBall81 >> many thanks, i actually I knew this step, but I did not apply it, as it will be someothing that we often forget it,
I was talking witha friend today, he told me there is an App they call it apps killer or something like that, I am not how much to buy this app. and how efficient to help shut down the app every time,
another point, today my batter run off when I was leaving office, just got home and i started charging, tried to call out and the the OS hanged .. stuck there and no call out whie showing a scree that is calling, I tried to call my number alsoe I heard ringing but not showing any incoming calls..!!
I took it to the company, they told me they need to upgrade the OS5, and they told me this is a common issue with iphone 4s, anyone experienced such matter? plz share your experience,
once again, manythanls for all efforts, thanks Tech guys