Why I have no power to screen?I just bought a 2013 iMac 27. I was told that the screen and LCD needed replaced. I done the replacement and I'm still not ge...
Answer to: My display setting somehow got changedGo into device manager and reset your display. Should fix the issue. First, though go into your screen resolution and check to see what the resolution is set as. Sometimes it can be as simple as hdmi cord not connected or vga cord. Unplug then replying back in.
Answer to: Cannot on after change screenCheck all cables to ensure it's properly snug into the connection. The battery shouldn't have done anything to it. Also, check the power to it by hooking it up to iTunes. It should turn on with that. The only other thing I could think of it's a faulty LCD. Check cables first though.