[Q] Samsung SM-G530H get freeze 10-20s in sometimes ?

[thelastnobita]

My wife bought Sm-g530h six months ago. She had installed some game & app: facebook, hayday, .... Now, Sm-g530h work slow & freeze in sometime. I have just factory reset, but It still slow + free.

I need some help !

 

[thelastnobita]

+ Added more info: used firmware 4.4.2