Level 1

8 points

Urgent help. Stuck with black screen after el capitan installa

My macbook pro was showing circle of death very frequently . Thus I updated to Mac el capitan. After many attempts i was succesful . But again the wheel of death problem started . so decided to reinstall. After reinstallation i got a blank screen with a cursor . Does not go beyond this. After I shut down and restart , I just get a kernel version screen and it restarts . So I am stuck . Please if any one could help me . Its Urgent . Mac not opening up .

MacBook Pro, iOS 9.3.3

Posted on Aug 6, 2016 12:28 AM

22 replies

Senoritalife Author

Level 1

8 points

Sep 5, 2016 8:08 AM in response to Lexiepex

Thanks . Will do that . It's just I was trying to be sure if it's hard disk problem. So that I can only change the hard disk instead of taking it to the Mac service centre who is charging double the amount and who does not have the SSD in stock right now

Lexiepex

Level 6

14,108 points

Sep 5, 2016 9:25 AM in response to Senoritalife

Senorita, how old is the Mac? The modern Macs are very difficult to do yourself. And there are several different measures:

The "old" ones Sata, 2.5", that's easy. The modern ones have a different shape and connector.

If you do a SSD inside, format it first; GUID Partition Table, Mac OS X Extended (journaled). Even with so called "prepared for Mac" or "Mac ready". Do not instal Trim with a third party app or with the Command line commands: it does not help, and it is possible that the Trim command interferes with the Disk Controller (GarbageCollection/WearLevelling).

happy computing,

Lex

Senoritalife Author

Level 1

8 points

Sep 5, 2016 10:22 AM in response to Lexiepex

It's a mid 2012 MacBook pro. After seeing some videos I thought it was quite easy. The store was ready to fix the new hard disk ( that is opening the screws etc ). Then I thought I could simply format it and then install the OS from external hard disk .

Lexiepex

Level 6

14,108 points

Sep 5, 2016 10:40 AM in response to Senoritalife

Correct. Good thinking.

Senoritalife Author

Level 1

8 points

Sep 5, 2016 11:36 AM in response to Lexiepex

It's all good. But the only risk is even after replacing the hard disk , the problem continues.

See as per the attached video below, it says it can be either the problem of faulty cable , bad hard disk or bad motherboard.

https://youtu.be/Q6iPqs1I1-E

Eric Root

Level 10

685,293 points

Sep 5, 2016 4:21 PM in response to Senoritalife

If you live near an Apple Store, make a Genius Bar appointment to have the computer tested. Supposedly there is no charge for testing. Use 2nd link if not near an Apple Store or aren’t in the US. Hardware Repair - Keeping Confidential Data Safe

Genius Bar Reservation US

Authorized Service Provider

Senoritalife Author

Level 1

8 points

Sep 6, 2016 11:44 PM in response to Eric Root

Thank you every 1. Have finally submitted my laptop to Apple service centre. They have diagnosed the problem and have concluded that the problem was because of the flex cable and my hard disk is fine. They will be replacing the flex cable.

But I still wonder if it's possible to get so many circle of deaths just because of faulty flex cable ?

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Urgent help. Stuck with black screen after el capitan installa