Macbook doesn't start anymore

Hello,


i have a problem with a MacBook A1342. This Macbook doesn't start anymore.


I press the Power Button and nothing happens.


I tried to power it on with another MagSafe but this still doesn't work.


Also the MagSafe doesn't show any LED ligh at all.


I have also changed the Logic Board. But there is the same issue with the other one.


What could be the problem of this failure? And how can i fix this?


Thank you very much.


Philipp

MacBook, OS X El Capitan (10.11.3)

Posted on May 27, 2016 6:04 AM

Reply
5 replies

May 27, 2016 6:08 AM in response to Phile1993

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!

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Macbook doesn't start anymore

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