Chosen Solution
Had a 2017 Macbook Pro with broken screen. Replaced the screen with the kit from ifixit. Boots fine then before I can login the screen flickers and goes black. I can still see the backlight on a bit, when I hold the power button to force shutdown I can see the screen go completely black to confirm it is off. Ran diagnostics - no issuesReset SMC - no changeReset NVRAM - no change Everything works great in safe mode however, so I’m pretty convinced it isn’t a hardware issue. To that end, I wiped the macbook and reinstalled os (screen worked perfectly fine during this process). I even upgraded to big sur, with no problems. UNTIL I try to boot into the main os, then the screen goes black again. But everything works in safe mode. Any ideas? I’m at a loss. The only thing I can come up with is that maybe something else was damaged when the screen was broken.
At this point I think you need to get a new display assembly. I’m thinking the T-CON board is encountering an issue which is the small board hanging off the display
I would contact iFixit for a part exchange Contact iFixit Customer Support
Hi Is your issue fixed? I have exactly exactly the same issue, while the screen has not been replaced I’m currently in safe mode, all new install of Monterey… something absolutely ridiculous, if have clearnmymac run, open on the main page … no black screen even in normal mode ….Help help help ;-)