Question: White Screen problem - MacBook Pro can now only boot into Single User or Verbose Mode - Etrecheck Report
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 OKI 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:
Many thanks in advance if anyone can make sense of this and advise what the heck is wrong with my MBP.