I have samsung galaxy grand prime + .. which model no is SM-532F. The phone has knox version and 1.5 gb ram and 8gb memory.. but the problem is the system apps are taken space 6.5 gb already. So if I install such 4 to 5 apps. Then it's shows storage space running out. So i need suggestion that how I can increase my internal memory.. some of app I moved to sd card but still it's showing storage space running out. So what I will do.. is there any solution to how can I use my sd card as internal storage?