Galaxy s6 black and blue screen fix? plz help!

[jlevene21]

the top of the screen is blue and is flashing on and off. i can hear the button noises and fell vibration
buttons on bottom are lit up like usaul. but the rest of the screen is black i cant see anything

 

[lucianus_luciferus]

press the home button quickly 3 times. or 4 times