Chosen Solution
Hi, My screen was failing and eventually it died. Few days ago I replaced it with a new one. Although new screen works great, my macbook runs extremely slow and fans are loud right from the start. Did anyone have similar issue? I read somewhere that thermal sensor can get an error and slow the cpu on purpose.. I apple store they told me that they would have to send it out for a hardware repair. Since my new screen works i was told it must be another component (perhaps logic board) but on the other side my laptop worked fine on external monitor. If anyone had similar issue and knows a different ways to trouble shoot it I will appreciate any feedback. thanks Update (11/11/2015) I was able to clarify and narrow down my original question. This cable from my new display causes my macbook pro mid 2012 run extremely slow and i get loud fans right at the loading screen. With it being unplugged works just fine. Any feedback as to what can I do besides trying to return display? I assume its camera cable since Skype and Photo Booth says no camera connection. Is it responsible for anything else? ps..if it helps, if I plug that cable on the old screen it works well too. So its not my laptop but rather new display’s.
At this point, I would replace the old display and take it to Apple, ask the good guy that told you to keep your mouth shut first and seen if he agrees. A good tech will spot if the display is different. eBay Buyer Protection may cover you on returning the one you bought. The repair they quoted you is called a tier 1, “Flat Rate repair”. All parts need to be original and they will fix almost everything they find for that price, even the battery if it needs it. A small gratuity might be in order for the Apple guy but don’t make it obvious, maybe a small gift certificate or iTunes gift card.
Bad LCD Flex Replace it.