Chosen Solution
Hello guys, after a bit of help with this one. So, I was using my Mac one day, left it on my desk for a day, and the next day I opened it, no screen. Total black. No backlight or nothing. I’ve powered it on and off multiple times, following all apple instructions, and still nothing. Every single other feature on the on the laptop works perfectly, FaceTime camera etc. And the display appears on an external monitor as if there was no issues. The machine has never been dropped, and for the backlight and display to just suddenly stop working for no reason at all has me baffled. Any ideas? Any cables I can try to disconnect/reconnect on the inside? many thanks in advance.
Try to perform Option + Shift + control while switching on the Mac for SMC reset and command + option + P + R for PRAM reset may be it works for you
Use a flashlight shining through the Apple logo in the lid are you able to see the faint images of your desktop and its icons? If you do your backlight driver needs replacing on the logic board and you may have some corrosion damage. If you don’t see an image then you likely have corrosion damage on the logic board display connector.
Follow this IFIXIT guide MacBook Pro 13" Retina Display Early 2015 Display Assembly Replacement to Step 6 and then jump to Step 11. Let us know what you find