Need help identifying missing components from logic board for USBI have a macbook pro 15" a1286 with the 661-6492 logic board. Its the mid 2012 non retina i7 model. I was doing a repair on t...
Answer to: Display small rectangle flickeringI've been having similar issues on my Mac Mini 2012 connected via HDMI. Not little rectangles but bigger graphics glitches. I am fairly certain it is due to the newest os Yosemite. Ever since I have updated I have had these issues and so have other people online. I would suggest trying to install an older OS on the machine Pre-yosemite and see if you still have the issues. If so then it is likely a GPU glitch caused by a failing GPU/bad connection to LCD/ or least likely, the LCD/controller failing.