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Question: White Screen problem - MacBook Pro can now only boot into Single User or Verbose Mode - Etrecheck Report

MacBook Pro 17", Late 2011 (MacBook Pro 8,3)
El Capitan 10.11.6
Graphics card replaced by Apple Store April 2017

Starting a few days ago with random re-starts and various boot and running problems increasing in severity and consistency, the situation now is:

Normal boot:

Apple + start up chime followed by blank screen, no cursor, keyboard is dead.

Safe Mode:

the same (Safe Mode was one of the first things to go consistently to the frozen White Screen)

Apple Hardware Test:

sometimes goes to bright, dark blue screen and sometimes goes automatically to Internet Recovery and freezes during Pass Number 1 at around 4 or 5 minutes - cursor active but slow, keyboard dead, cannot activate "Stop Testing" button so have to do hard Power Down and Restart (I have left it running for several hours and it has never progressed further).

Alternative Boot Drives:

Yesterday I was able to boot using Lion Recovery on a USB memory stick. Today I can still choose that drive but it goes to White Screen. Attempt to boot from Snow Leopard DVD results in error tone indicating RAM problem (3 beeps, 5 second interval, then repeat in endless loop).

Disk Utility: no longer accessible but yesterday when it was usable "First Aid" verified the MBP drive as OK.

Single User Mode: fsck reports Disk is OK

I HAVE TRIED RESETTING SMC AND VRAM MANY TIMES :-)

I was able to use the MBP for quite long periods of time until today. Yesterday I ran Etrecheck and got these results if anyone can see anything here that would provide any clues I would be very grateful for advice (using my ancient iPhone now, in case anyone misunderstands and thinks the MBP is still functioning):

I could not post this with the Etrecheck Report included, maybe because of the special characters in it, so I have made a note of it here:

https://notes.pinboard.in/u:lizpanton/notes/4deda9d88ba6d2d19a7f

Many thanks in advance if anyone can make sense of this and advise what the heck is wrong with my MBP.

Liz

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Answer:

UPDATE! Good news!


Also a correction as it is to late to edit my original post: it was the Logic Board that was replaced in April, not the graphics card.


I took the MBP to the Genius Bar at my local Apple Store today, in the hope that they would still test an obsolete machine and give me a diagnosis.


They did and it was the replacement logic board at fault. They explained that they were not able to repair or provide replacement parts for a "vintage" machine and that other customers had had similar problems with replacement logic boards for that model. So they replaced the computer with a top of the range new MBP! *faints* !!!!


I do like a happy ending! :-)

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Nov 13, 2017 3:05 PM in response to ms.mousette In response to ms.mousette

UPDATE! Good news!


Also a correction as it is to late to edit my original post: it was the Logic Board that was replaced in April, not the graphics card.


I took the MBP to the Genius Bar at my local Apple Store today, in the hope that they would still test an obsolete machine and give me a diagnosis.


They did and it was the replacement logic board at fault. They explained that they were not able to repair or provide replacement parts for a "vintage" machine and that other customers had had similar problems with replacement logic boards for that model. So they replaced the computer with a top of the range new MBP! *faints* !!!!


I do like a happy ending! :-)

Nov 13, 2017 3:05 PM

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Question: White Screen problem - MacBook Pro can now only boot into Single User or Verbose Mode - Etrecheck Report