I had the same problem but the answers mentioned here didn't worked for me.... And I am stating here what has worked for me.
Note: 1) Boot chime sound was there every time I tried to start it.
2) Just 3-4 seconds after...the boot process was getting frozen.
3) I tried removing SDD and then boot from USB (ubuntu) , but it didn't worked.
4) Every time i started into device select on boot (Holding OPTION at the chime sound)... the spinner was getting stopped and the screen was getting frozen.
5) My model was MacAir 2013.
6) I tried every other answer mentioned here on this page
Out of frustration when nothing was working out, I took out its motherboard ( a.k.a logic board ) and to my surprise I saw green colored corrosion... around one particular IC and resistor... everything else was working fine... but this green colored rust catches my attention. So with some plastic material i tried to shred off the rusted dust and used ALCOHOL (its chemical property it to evaporate taking water moisture with it) to clean it up...and then I left it in direct sunlight for some 1-2 hr to get it dried off thoroughly.
Screwed it into laptop again and Voila...its working perfectly fine!!!!
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Do you hear the apple chime at startup or are you only hearing the hard drive spin up?
Have you thought of hooking an external display up to the mbp?
Ouroboros tarafından
is it okay to hear a start up chime and drive noise ??
Sonia Srivastava tarafından
I have similar issue - but I have a solid state drive so its not the disk spinning. I hear a feint mechanical sounds almost like a groan sound repeatedly as it tries to start up. I do not hear the chime at all. Screen stays black. Then I push the power button once a cycle and after several tries it "catches", the screen lights up and it gets to the login screen after saying it restarted after a 'problem'.
tsloss tarafından
What do you mean you push the power button once a cycle and after several tries it catches? I am currently having the exact same issue as you (upgraded to a solid state drive and more RAM a year ago), and when I power on I hear a fan or mechanical sound but screen stays black. I never hear the chime. Any advice would be greatly appreciated. I know Apple doesn't have the customer service it use to but I still love my MacBook.
Christa Nguyen tarafından