My rear LCD screen is not working all of a sudden

Good day!

My Gopro hero 4 silver lcd screen won't turn on. I've tried the troubleshooting instructions in Gopro official site like: turning on the display in setting options, ''reset default camera", and update the camera online using my laptop; the update was a success but i still have the LCD screen problem. My Gopro hero 4 silver was perfectly fine the last time I used it 2 months ago and when I turned it on now, the LCD screen won't turn on anymore. Please help guys! Thanks!