help my iphone 4s is acting up, it keeps telling me there's a update & when i open apps there's no update then it clears for about 1min & it comes back plus it won't show me my past games apps i purchased, when i'm in a game or google it lets me play/browse for a while then it goes blank & returns me to the home schreen does anyone know what i can do to repair this rather than going to support as i can't afford their prices thank you for any help that incurres sidney