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Mac book pro. Black screen cannot start but with boot sound

Mac book pro model A1151 black screen cannot start

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Have you tried connecting an external monitor.

A boot chime means the Mac has passed POST, that the screen remains black initially suggests there is a problem getting image to screen which could mean a bad cable to the LCD or the LCD display its self is having problems.

By connecting to an external display you verify the graphics on the logic board is functional, and it could get you up and running till the display problem is fixed.

Also try powering up and when you hear the chime, hold down the COMMAND+OPTION+P+R keys, and keep holding them till the machine has chimed 3 times, this will reset the 'BIOS' in case there is a glitch there stopping the display from showing up.

Posted on Apr 14, 2014

  • 3 more comments 
  • SCSu Apr 14, 2014

    How to connect MBP 3.1. 17" A1151 to external monitor step by step.

  • SCSu Apr 14, 2014

    Command+option+P+R only work for one time, when you start again screen shoe black again. The pram battery is 3.2 V it is ok

  • Nik Milosevic
    Nik Milosevic Apr 15, 2014

    You have conflicting information here. MBP identity=3,1 is model=A1229, while MBP model=A1151 is identity=1,2.

  • Nik Milosevic
    Nik Milosevic Apr 15, 2014

    Both the models mentioned above connect via DVI port to external monitor, but you can use a DVI-VGA adapter to connect to a VGA port also.

  • Nik Milosevic
    Nik Milosevic Apr 15, 2014

    If after reseting the 'BIOS' the LCD display works and then goes black on restart, I suggest you may have a software glitch with your MacOS, but there is one more thing to reset just to ensure its not the problem. Reset the SystemManagementController by doing the following; 1)Turn off the computer, 2)Disconnect the power adapter, 3)Remove/disconnect the battery, 4)Hold down the power button for 5sec. Now you can reconnect the battery/poweradapter and power up.


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