A2141 no signal on external screen while recovery

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  • myth77
    Badcaps Veteran
    • Feb 2017
    • 380
    • Croatia

    #1

    A2141 no signal on external screen while recovery

    I dont do Macs, so i really dont know their specific behavior, but i received one (from the title) with smashed screen. It is turning on..but i dont want to buy a new screen to find out it is locked or dead or something. So, i removed lcd connector from motherboard and i am using adapter from usb-c to hdmi to connect laptop to external monitor. It seems that laptop is wiped because it goes to recovery (internet) and at first it seems all ok...i can see apple logo and downloading ios, then when it goes to installation i can see progress bar, and after couple of seconds it goes to "no signal" on external monitor?!
    I dont know is that normal? Do i need original lcd to see progress or? Maybe it is switching from internal gpu to another and one of them is dead? Or maybe i need some special usb-c to hdmi cabel, some original from apple?
    I checked voltages on the board and everything seems ok.
    For any help thx in advance.
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14597
    • Canada

    #2
    Re: A2141 no signal on external screen while recovery

    Try booting in safe mode.

    Could be a GPU issue:

    https://www.badcaps.net/forum/showthread.php?t=97535

    Comment

    • myth77
      Badcaps Veteran
      • Feb 2017
      • 380
      • Croatia

      #3
      Re: A2141 no signal on external screen while recovery

      can i boot into safe mode if ios not installed?

      Comment

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