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The laptop (mid 2012 pro retina) made a loud ‘cracking’ noise one day, and the hinge on the left side broke, disconnecting the screen from the body. Anyway, the screen is generally black, but if you tinker the exact positioning of the screen it will turn on, though sometimes flicker like a 90s television set. It was like this for a couple weeks, and I didn’t have a chance to repair it, but alas, now I can’t get it to flicker on at all. So 2 questions, I suppose: Is there anyway I can more immediately get the screen working? I’m guessing it’s a question of contact between two points or something, surely that’s repairable? I’m willing to take it apart. Looking at replacement prices, it seems worth the gamble.If that’s reparable, what to do about the hinges? Would I need a whole new screen to ‘put’ the two pieces back together? Anyway, strange question, maybe, but thanks for any and all responses. Update (04/17/2019) For instance, when the screen was sort-of working, sometimes I’d put the left side of the screen (where it is unhinged) on top of the lower body, and for some reason the screen would turn on. If I put it ‘back’ to where it would droop and touch the tabletop, it would turn off. Or sometimes the opposite. Sometimes putting a small book or pamphlet under the left side of the lower body, then leaving the screen to droop but raising the lower body would cause the screen to work. It’s all very odd.
At this point you likely damaged the cable from the display to the system board via the broken hinge. If you had stopped using your system that the first signs I’m sure you could have saved some expense. At this point you will clearly need a new cable and you may have damaged your logic board circuitry which could be an expensive repair. So lets hope! The damage is not to bad. For now shutdown your system and leave it off! Here’s the cable MacBook Pro Retina (2012-2015) Display LVDS Cable|Retina MacBook Pro 13"/15" Hinge, Left - Display Cable Apple P/N 818-2882] Here’s the IFIXIT guide you’ll need to follow MacBook Pro 15" Retina Display Mid 2012 Display Assembly Replacement. Follow it to the end and then you’ll need to carefully slide out the cable following MacBook Pro Retina Display Teardown Here we only need to take the clutch cover off following Step 3 and stopping at Step 5. Carefully remove the antenna bar so you can gain access to the other end of display cable. Fold over the clip latch just like the logic board and slide it out straight out evenly and flat like you did on the logic board don’t lift until the connector is fully out. Once you’ve got the cable reconnected on both sides see if your display is working again. If not you’ll need to get someone to fix your logic board..
