My MacBook Pro won't start up please help me

I tried everything I could do - SMC, PRAM, shift S, even the Apple Hardware test which told me that my Hard Drive had died and trying to create a OS thumb drive... really anything. The bar would often come up, but always stopped about 1/4 inch from the end.

Here's what worked.

I decided that if I'm giving up, I may as well wipe the drive - so I pushed the power button and command R during chimes. Make sure that your wi-fi is connected to your network. When the multi-choice screen came up I wiped my entire HD. Then installed the new OS. Worked like a charm. It's so pretty now.

Hey eddydamasio,

Thanks for the question. I understand that your MacBook Pro won’t turn on. The following article may help to resolve your issue:

Troubleshooting: My computer won't turn on

http://support.apple.com/kb/TS1367

Note: if you hear a startup chime or the fans running, see this article instead:

Apple computers: Troubleshooting issues with video on internal or external displays

http://support.apple.com/kb/HT1573

Thanks,

Matt M.

Matt00

I turn on my macpro and the screen is black.

I get the chime when turning it on but the screen is black and stays that way ??????

Also this is a brand new computer.. its only a montg old

What do I do. I am in germany now but bought it in the US ??

Please help me out anyone..

i don't know why my macbook pro can't open and when i charged my computer the green light become dimmer. I have tried to use another adapter but it is still not working.So What method can solve my problem

Guys my macbook pro can't turn on and i have tried to charge it but the green light become dimmer.Now i can't turn it on.Please tell me how to do

that happen to me so i went to a apple store and they said it was a glitch

felixkama,

You need to take your machine to your local Apple Store and have them run diagnostics on it. This is a rather old thread and it doesn't seem as if the original poster had his/her problem resolved.

Clinton

My computer is turning on but its loading al the time what should I do? please help me if you know

I know this is an old thread - but no answer has been posted "go to apple store" is not a solution. Here is how you fix it. You simply need to reset PRAM. Do this by hitting the power button and holding down:

OPTION - COMMAND - P - R

Hold it down until you hear the Chime for the second time and then release. Doing this should reset the system and allow you to log in.

This has happened many times to me. But the only way that works for me to fix it is this:

- Make sure it is OFF

- Turn it on like you normally would, but WHILE you are turning it on hold down:

OPTION + COMMAND + P + R

- Turn it off, then turn it back on and it should be on the login screen

(Sometimes when this is done the screen may flash.)

I have a similar problem.

When I power on my mac book pro, a bar appears at the bottom of my screen and starts loading. It doesn't even get near half way before it stops, then my mac switches off.

I've tried the opt + com + p + r solution but it didn't work.

What do I do? Somebody please help. 😕

THANK YOU to the original poster for this tip!!! After trying using the shift key 20 times at startup , macbook pro kept shutting down after 10 seconds. I didi exactly as poster said . opt + com + p + r and it worked!!

It starts twice actually by itself and after the 2nd time it starts when Apple screen shows up, release the keys. This takes you to disk repair .

it worked. Thanks

I did the option + command + p + r and the chime sounds and it goes to a white screen with a folder in the middle that has a question mark on it. Never changes. Any answers for that?