Chosen Solution

I just got this macbook off craigslist, and it had one issue with the wifi, so took the back off to unplug the wifi/bluetooth thing, and when i turned it back on, the display was green! it’s just a tint, but a very strong tint. everything is green. i really need this laptop for school, can someone help?? it’s a Macbook Pro (i don’t know what year) Mac OS x 10.9.5 15 inch

maybe that you have activated a color profile?