Chosen Solution

Hi everyone I am using MacBook Pro early 2011. I have upgraded it awhile back with an SSD and 16 RAM. It’s running the lasted Mac OS, MAC OS Sierra. My issue started yesterday, my MacBook Pro screen started to flicker and switch the image many time as my monitor. I had one plugged in (An example image would be this: https://i.stack.imgur.com/zGHEP.jpg). RIGHT NOW, every time I turned my MacBook Pro Apple logo will load then I see a white screen. BTW, Apple changed my motherboard or the graphite card awhile back because a manufacturer issue. What I have tried:

  1. Rest NVRAM.
  2. Rest CMC.
  3. Verbose mode.
  4. Recovery mode. It will load the the Apple logo then go into white screen.
  5. Internet recovery. It will load the globe then go into white screen.
  6. Cmd + s.
  7. Apple hardware test both regular and the extended one. It said no trouble.
  8. Single user mode.
  9. Switch the ram with the old one. Tried to leave just one.
  10. Tried to boot using a usb had the os x on it. I can choose the usb to boot then see a white screen. When I run the Macbook Pro and hit option, it will show me the ssd. EVERYTHING I had tried will just lead me to the white screen. I tried to plug an external monitor and saw the white screen again. Do you have any suggestion? please help!

There are couple of know issues on the model. The first you are familiar with, the GPU issue. The second was the hard drive/IR cable. Usually a white screen is indicative of a failed hard drive and/or cable. To eliminate this, unplug the hard drive cable at the logic board and boot from your external source. If you external monitor exhibits the same problem, it is the GPU again. There was a class action law suit that preceded the extension program. I would first contact Apple directly, ask for a warranty exception since they did not successfully repair it the first go around. UPDATE 7/18/17 I’d like you to boot from an external source,using the USB, either a external enclosure or a USB flash drive with 10.11 or 10.12 on it and disconnect the hard drive cable from the logic board before doing it. Please let us know your results. Let’s first see if the cable fix will do the trick and then address the possible GPU issue: MacBook Pro 15" Unibody Early 2011 Hard Drive/IR Sensor Cable Replacement

Hi Mayer I tried to do that, but still didn’t work. What worked for me was baking the logic board in the oven :) Thank you so much for your help p.s. I forgot my original account password so I have created a new one to reply to you