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My MacBook Pro 0X10 will not boot up. I can hear it running

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Hi, my MacBook Pro 0X10...
Hi, my MacBook Pro 0X10 will not boot up. I can hear it running but there is a black screen - no password *****
Submitted: 2 years ago.Category: Mac
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Answered in 1 minute by:
11/17/2015
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago
David
David, Mac Support Specialist
Category: Mac
Satisfied Customers: 1,502
Experience: BSc H.Dip Apple Certified Professional
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Hi my name is ***** ***** I will do whatever I possibly can to help you with your issue.

Do you know the spec of the MacBook Pro, which model it is?

Does it have a sealed in battery, or one you can remove?

Have you tried any troubleshooting steps already?

Thanks in advance.

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Customer reply replied 2 years ago
It's model no is A1286. I don't know where the battery is - there is no opening like on a camera. I have only tried turning it on and off. Once, I got a message prompting me to change my password ***** it had not been entered...I tried that, but it still won't boot because I am not seeing any opening screen
Customer reply replied 2 years ago
I know the screen at least works, and the keyboard. But it is not letting me log in. It's a blank screen.
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

Hi,

Then I would begin by resetting the power management unit, I will give you the steps.

https://support.apple.com/HT201295

To reset the power management you need to simultaneously press and release the (left side) Shift-Control-Option keys and the power button., and simultaneously release them.

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Customer reply replied 2 years ago
Ok, I tried that a couple of times...no joy.
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

You need to know that you are pressing these buttons and the power button at the same time, and that it does not power on if you press them at the same time.

So if you try this step, and you hear the machine power on, you know you haven't pressed and released the keys and power button together at the same time. You will need to power it off and try it again if that happens.

If you do it right it will not power on or do anything at all to indicate that it was done right. You will then wait 5 seconds and press the power button on it's own to power it up and check if this has resolved the issue.

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Customer reply replied 2 years ago
Ok thanks. I will try that now.
Customer reply replied 2 years ago
Ok, I did it and it did not peers on. Then i turned it on. It powered up, but still no screen.
Customer reply replied 2 years ago
Peers was supposed to be power.
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

Ok, this could be a hardware issue needing a hardware repair technician to look at it to diagnose the part that needs to be replaced.

You can try resetting the PRAM, as this stores the brightness setting.

https://support.apple.com/HT204063

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Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

You need to hear two startup chimes to know this has been done properly.

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Customer reply replied 2 years ago
Thanks. I don't think it's brightness because I did once get an error message on the screen. Is there anything else I can try before taking it in?
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

As long as you have no external devices connect, and you've tried both these steps, then there is nothing else besides hardware diagnosis of the problem that can be done I'm afraid.

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Customer reply replied 2 years ago
Ok, thanks.
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

It would be different if you could see that error message again, or if something changed to get you to any type of startup screen.

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Customer reply replied 2 years ago
I appreciate your help.
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

You're very welcome!

You know I still think you need to reset the NVRAM as in that article, because it can fix a whole host of things that are not just related to the brightness.

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Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

Have you tried the NVRAM reset where you heard two startup chimes from the MacBook Pro? And if so has it still not made any difference?

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Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

If you have, and you do need to take it to a service technician, you should check if you still have warranty cover or extended AppleCare.

If you're getting a paid repair you should get it done by an authorised service provider, because the repair will come with it's own warranty of 90 days.

You can search for them here http://locate.apple.com

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Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

If you are happy with my service, please take a moment to rate my answer on the site. Don't hesitate to get back to me with any questions.

Have a good week ahead!

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Customer reply replied 2 years ago
Thanks. I tried the pram reset and heard the two chimes but still nothing. Thanks
Mac Support Specialist: David, Mac Support Specialist replied 2 years ago

I would really appreciate it if you could log onto the site and rate my answer. This is how the site will know to close the question, and to pay me for answering to your satisfaction. Much appreciated!

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