My screen keeps flashing black or the time screen

[AC Question]

So, this started happening all of a sudden, you know when u have an auto-off magnetic cover and when I close it it shows u the time,battery,Wi-Fi connection etc. My Samsung Galaxy S6 Edge started having a problem where whenever i turned it on, the screen would from time to time flash the "auto-off magnetic cover screen" sometimes with the time and sometimes just black. Does any1 know how to fix this problem???

 

[belodion]

(Moved to S6E forum.)