Chosen Solution
My MacBookPro was recently had its logic board replaced by an official Apple store. The Apple store said it had been fully tested with diagnostics after the repair. Despite this, it started randomly showing blue/pink/white screens. I did SMC/NVRAM reset and clean re-install but nothing fixed it (It actually had the colored screens during the re-install). Then after a few weeks, it suddenly stopped having this blue/pink/white screens issue (although it still occasionally gets black screens). It stopped after I moved the laptop (normally I just leave it on the desk). Could there be something loose that could cause this? Would a loose connection not be picked up by diagnostics if the offending part was making a connection when the diagnostics were being done? If the loose part has indeed moved back in, then will it stay fixed? After the blue/pink/white screens, the system usually re-starts and I get this crash report: https://pastebin.com/t2Ed8LWy Does that crash report have any indicators of the problem? PS I know I can just take it back to the store. But it’s quite difficult to get to the store, and I am concerned that they won’t be able to reproduce it. So I am trying to find ways to narrow it down, so I can reproduce it for them. I also know I recently made a similar topic about this, but this current post has extra information about crash reports and loose connections, so hopefully, it won’t be classed as spam.
Boy! You are having a hard time with this system. The crash report points to the AMD discrete GPU failing! You’ll need to go back again to get the replacement board swapped out again with a third one. To prove this you should be able to boot up under Safe Mode. Restart your system and press the S key, the system should bootup without error.
Hi At the moment taking it back to the store is probably the safest option as taking it apart may void the warranty of the repair However If you would like to go ahead and reseat the display connector that could be worth a shot Here’s the guide for that MacBook Pro 15" Retina Display Mid 2015 Display Assembly Replacement You only need to do step 10 for reseating the display connection There is the possibility that your logic-board has gone faulty after the diagnostic or just it just isn’t picking it up You can run the diagnostic your self if you hold D on startup or a restart Hopefully this helps Any questions please ask Thanks:-)
