Looking for some advice on what to do. I have an Early 2015 Macbook Pro. A few days ago, it started having screen flickering in different colors on start up, and after a few seconds, the screen goes to a blank black screen. I have tried updating the OS, resetting the SMC and PRAM/NVRAM. The screen does NOT flicker on safe mode, but if it's off safe mode, it goes right back to flickering and then a blank black screen after a few seconds. It is not associated with any one program. It flickers on start up even with the apple logo. Anyone have other ideas outside of either reinstalling the OS or taking it to the apple store? It's outside of applecare warranty.
From your description, I assume you followed these steps, but just in case: https://macreports.com/mac-how-to-troubleshoot-screen-flickering/
Unsure if you already saw this thread on macrumors. https://forums.macrumors.com/threads/macbook-pro-15-mid-2015-retina-screen-flickering.1904486/
If the threads don't help, it might be worth trying it on an external monitor/TV to see if it at least allows the use of the system (and it doesn't follow the external monitor with flickering etc.)... Because if it does follow, aside from some random software issue it'll be the mobo (I think Apple calls this logic board, don't quote me on that because I've only fixed a handful of Macs vs the hundreds of pc's I've fixed). I do know they're not hard to work on..., but the issue is the damn parts (any proprietary part) hold their value a lot better than pc notebooks. And iirc you'll need pentalobe screwdrivers.
Tried this. When I plugged it into the HDMI out to TV, the flickering stopped on both the macbook and the TV. As soon as I unplug the HDMI, it goes back to flickering (and now to a green screen). This is after I erased my HD and reinstalled the OS. Can this still be the logic board. If not, any ideas?
Stupid question....if you leave the HDMI cable connected to the MAC, but not the TV, what happens (or is that what you already did)?
I might need to think a bit more on this, but when you unplug the HDMI (and the screen starts flickering or goes green etc.) can you plug back in the HDMI (without restarting the system) to make the screen return to normal? And if it does return to normal, are you just mirroring the built-in display or using it as an extended desktop?
