Here is a video i found a while back Two solutions for the MacBook Pro White/Gray Logo Screen of Death:( ! So i figured i would just post this video for you to see how to do it! If you are located in the San Diego Area and need my help for your computer repair needs no Issue to small for me to handle and no job to big that i cant fix!! i no longer repair Macbooks sorry :( Don't forget to hit the subscribe button :)
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https://www.youtube.com/watch?v=nuBbZJfBJDY