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{A1706 / EMC 3071}—Released in June 2017, this 13" Macbook Pro features Kaby Lake processors up to 3.5 GHz Core i7 with Turbo Boost up to 4.0 GHz.

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Black screen and uncertain if problem extends to circuit board?

Hi,

Have a MBP 2017 that had a dead panel and cracks around the bezel near the hinge joints. Sometimes I can get it to throw picture onto an HDMI external display via adapter but very rarely. Not sure if battery is charging either and as such purchased an Apple external power adapter. Problem is there is no picture. On the external display was able to log in once onto the desktop and once get into recovery but since I have only been able to see picture a few times on the external display but upon restart nothing happens and not sure if the circuit board is faulty as well. When I press the power button for ten seconds and then again nothing happens short of being able to turn on caps lock button. Rarely the ESC key on the LED strip with light up. Wish I knew if there was a blind way to force external display from the led key strip if possible. I also purchased a replacement cover screen panel but have not taken it out of the box because at this point not sure if its worth going through the process to replace it if the circuit board is dying or dead. Not sure whats my next move? Think its easier to scrap and sell for parts.

Thanks

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Finally figured out how to see a picture on the external display. Had to first press power for 10 seconds to shut it down, then press power and close lid to put it into clam shell mode and then immediately press CMD-OPT-P-R on the external keyboard. Now if I only had the password.

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Give this a try! First off you’ll need an external keyboard and mouse connected to your system. Then connect your external display and power supply. Now, press the power button and then close the display lid (what we can Clamshell mode) this system knows the internal display is not active and will pump out the video to the external. Did that work?

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To be honest I thought of doing that and decided to try it based pn your suggestion and the first time I tried it it worked and I got a picture on the screen and saw the login and recovery. So I restarted the laptop using the same methodology with external mac keyboard and everytime the monitor finally synced and no longer said hdmi not found or something BUT with a complete BLACK screen and I cant figure out how to get the notebook to send a picture! So frustrating. Tried to even do a SMC reset but no luck.

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David Moheban will be eternally grateful.
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