Karbonn mobile is only using the android mobile only its camera is not so better.The karbonn mobile in this version we are facing some problem in saving the contacting.Mobile is not been working properly and the set is being getting hangging some times battery backup is not getting so longer is getting reducing fastly and mobile is also getting heating the set. In connecting the data or wifi is also facing some problem and want to change some advanced settings if not it is not getting the data.