MacBook Pro Retina black screen on swap

Discussion in 'MacBook Pro' started by Fpc, Apr 22, 2017.

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  1. Fpc macrumors newbie

    Joined:
    Apr 22, 2017
    #1
    I have purchased a replacement LCD because my original was cracked. The replacement is for a1398 as is the MBP I put it in. When booting there is no light or power to the new LCD assembly. I have checked the cables over and over, all connecting fine, reset nvram and pram, mac chimes and boots but only shows a black screen. Adjusted screen brightness but no change. I reinstalled the old screen and it booted fine, is there something else that needs resetting or is this a defective LCD?

    Thank you
     
  2. tryrtryrtryrt Suspended

    Joined:
    Sep 10, 2016
    #2
    By "nvram and pram" you mean "nvram and smc"? If yes, probably defective LCD if you're 100% sure you've installed it right. On late 2013 replacement LCD worked right after installation, no NVRAM or SMC reset even.
     
  3. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #3
    Yes
    If the display does not light up, and reinstalling the old LCD panel works immediately, then you bought a faulty display panel.
     

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