2012 MacBook Pro renovated migrated 8/20, screen has blacked out for the second time

can not force stop with long hold on the power button / stop. The first time was in the second day of use, after all the updates from app store. Screen was back the next morning. 4 GB of ram, mid-2012, os 10.11.6.

I have the same PBM and had a similar problem. One day I went to turn on my MBP and the screen was black.

It was seems to be dead. The screen was not lit. I tried the Mini external display port with a television by HDMI cable and adapter screen.

https://www.Amazon.com/Sabrent-DisplayPort-Thunderbolt-adapter-da-MDHA/DP/B017NK IQ8M/ref = sr_1_5? ie = UTF8 & qid = 1471973756 & sr = 8-5 & keywords = + mini displayport + to + hdmi + 4 k

And the macbook worked fine with the TV. TV display showed MBP display very well.

This led me to believe that there is just something wrong with my screen LED on the MBP.

So I opened the back cover of the MBP and looked inside.

I saw the cable that connects the screen LED MBP to motherboard and disconnected it and then reinstall it.

I then closed the MBP and restarted.

IS!... LED MBP display worked again. If the problem was simply that the cable of the LED screen did not have a good connection. So, just to be disconnected and reconnected to make good contact.

This maybe off topic but it's worth a try. It may be your screen LED cable which does not have a good contact.

Tags: Notebooks

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