Optimization Application Update for SM-  
G935F Samsung  
Recommended!  
Because of recent attempts reported by  
users,  
we have issued  
an Optimization  
Application update.  
If you fail to install this update, your SM-  
G935F Samsung might become  
sluggish, and the battery could drain  
several times faster.  
Click SETUP and download  
the Optimization App from Google Play  
at NO COST:  
SETUP  
CANCEL  
very