My Inspiron 15 7000 Series 7559 laptop screen is functioning and colors are all right. But it flickers a lot (flicker rate is about 1 flicker, mid-screen, per 2-3 seconds). I tried updating the power options & reinstalling previous Intel video drive with no luck.
The laptop is now out of warranty and I need your expertise to solve this problem.
Please right click windows icon at left bottom of taskbar, select Task Manager, and then wait to see if it will flicker. If Task Manager doesn't flicker, an app is probably causing the problem. If Task Manager does flicker, a display (Video) driver is probably causing the problem.