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Helpful answers
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May 27, 2016 6:08 AM in response to Phile1993by D.Cohen,Take a look at the steps suggested by Apple in this article:
If your Mac won't turn on - Apple Support
Try Safe Boot:
- Shut down your Mac
- Wait until your computer turns off and after that press the Power button
- Right after you hear the startup tone, press and hold the Shift key
- Release the Shift key when you see a grey Apple sign and the progress bar below this sign
- After your Mac boots up, restart it as you usually do.
If this doesn't help, follow the instructions below:
- Shut down your Mac
- Wait until your computer turns off and after that press the Power button
- Right after you hear the startup tone, press and hold the Shift key
- Release the Shift key when you see a grey Apple sign and the progress bar below this sign
- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)
- Click on Verify Disk and then, if asked to fix problems, on Repair Disk
- After this, click on Verify Disk Permissions and then on Repair Disk Permissions
- After the process is finished, shut down your Mac and turn it back on after about 30 seconds
Apart from that, take a look at this Apple article and follow the instructions on Resetting NVRAM shown there: How to Reset NVRAM on your Mac - Apple Support
Try resetting the System Management Controller: https://support.apple.com/en-us/HT201295
Hope this helps! -
May 27, 2016 6:45 AM in response to D.Cohenby Phile1993,Thank you for your quick reply.
I tried all the above shown steps to start the Macbook. But nothing helps for my issue.
Could it be possible that the DC board of the Macbook is broken?
Thank you for your help
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May 27, 2016 6:53 AM in response to Phile1993by OGELTHORPE,Phile1993 wrote:
Could it be possible that the DC board of the Macbook is broken?
Yes, that is a possibility. The question is how can you test for it since the Mac is not functional. Try to get an appointment at an Apple store genius bar and perhaps they can assist in your trouble shooting.
Ciao.
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May 27, 2016 7:01 AM in response to OGELTHORPEby Phile1993,Thank you very much.
I will try this.
How can i test by myself if the DC board is working or not?
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May 27, 2016 7:08 AM in response to Phile1993by OGELTHORPE,If the MBP were functioning, you could run an Apple Hardware Test, but since it is not functioning, that is not an option, hence the genius bar recommendation. There is nothing else that I can think of to suggest.
Ciao.