will not boot grey screen, fans spinning loudlyI have followed the guide from ifixit to replace my MacBook Pro 15" Unibody Mid 2009 Upper Case. I followed everything very c...
Answer to: will not boot grey screen, fans spinning loudlyProblem solved. I have removed the logic board one more time. When removing it I realize i forgot to connect mouse to the motherboard. When i installed the logic board mouse cable was stock behind it therefore I missed it. I have put everything back and my laptop is alive aging. eeeehoooooo