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The March 2015 update of Apple's 13" MacBook Pro Retina Display, model A1502, features fifth-generation Intel Core i5 and i7 processors and introduces the Force Touch trackpad.

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Black screen after booting inexistent clover

Hello everyone,

in April I bought a MacBook Pro 2015 on ebay, and it worked fine, until... I have an hackintosh at home, and I used on it a normal usb key, on which I loaded Ubuntu live (just extracting the ISO on it) and inserted in the MBP to start Ubuntu.

What greeted me was Clover (the hackintosh's bootloader), which started MacOS and hung for a while on it (on the usb key there was only Ubuntu, and I'm sure of it, so this is already dark magic). Then I turned off the laptop, to reboot it, and I just got a black screen, nothing more.

The insides of the computer looked fine (I met a friend who brought the pentalobe screwdriver), though I didn't look too closely at it. The computer does charge.

I tried connecting a tv via the HDMI, resetting the SMC (the orange light turned green), resetting the PRAM, logging in, sleeping it and waking it up, safe mode, recovery mode, cmd+f1, booting ubuntu from the usb key, but none of these worked.

Connecting an external display gets a black output on the tv too, with all of the tests.

Since going to a repair shop is gonna drain me some hundred bucks, I decided to give the DIY solutions a try... Though I don't know where to start.

I guess checking the voltages on the motherboard is also a good thing to do, but even though I watched some videos from Louis Rossmann I'm still a bit uncertain...

Any help would be hugely appreciated, even if you know some other site that could help me or where I could ask for help...

Thank you for your help,

Marco

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How about just letting the system do an internet recovery to install a fresh copy of MacOS Startup key combinations for Mac. Depending on your internet connection this could take a while.

If you have a working Mac OS system on your other Mac how about creating a proper installer drive using a USB Thumb drive: How to create a bootable macOS Sierra installer drive.

Use either method to first reformat the drive using Disk Utility and then install the OS.

Update (11/09/2017)

If you can't see a screen image try shining a flashlight through the White Apple logo on the lid see if the little light it offers lets you see the desktop and the icons. If not you'll need to try an external monitor.

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16 Comments:

The internet recovery is a very good option, I ordered an ethernet adapter, but I still can't see what's going on on the screen... And the same can be said for the USB drive, I tried to start it but got no output... I'll retry, but it might not go differently...

How can I reformat the drive without booting it...?

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Review Target Disk Mode in Startup key options URL link I gave you.

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Really thank you, I'll try with the internet options, as soon as the adapter arrives...

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If you still get the black screen, try hooking up an external monitor.

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@mayer I did, and still got the black screen on both. The external monitor was getting a black signal...

@danj I will try the flashlight, but the backlight was working.....at least until we opened it.

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Marco will be eternally grateful.
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