skynetwarmax
New member
hi i have a macbook a1502 motherboard model 820-00012-a. It does a very strange thing, I tell you. when you turn on the computer, the apple appears and stays charging for a long time, but the curious thing is that if you connect an external monitor, you see the image of the desktop and the loaded one, but on the screen of the macbook it stays with the logo. I think it is something of the smc but I wanted to consult it first to see what you think