Note 5 black screen with blue light constantly on after dropped

[AC Question]

i dropped my phone whilst getting out of my car, the screen glitched out for awhile untill it just stayed black. i can hear people ringing and texting me but cant do anything about it. i tryed to reboot it by pushing the 3 buttons but nothing came up on the screen but the led light is blue and is fading in and out. what should i do?