Comments on: MacBook Pro won’t boot(sniff)

By: aftab wilson

aftab wilson — Thu, 30 Jul 2009 17:14:39 +0000

Cobra: Does the machine warm up? If it does, sit it on a flat surface, let it get really hot and then try hitting the power button. If it’s the nvidia chip, the heat should get the fractured bumps to reflow and connect with the logicboard. And please let me/us know if it works for you (tip from Clinton Hardwick). If it does, it’s the nvidia for sure.

Although I wonder how the store tested your nvidia without it booting?

By: Debty

Debty — Sun, 26 Jul 2009 21:25:41 +0000

Ahaan… I will follow.

By: aftab wilson

aftab wilson — Wed, 15 Jul 2009 15:03:07 +0000

@Cobra: What’s the latest on your mac? Did you get it fixed. Why do I have a feeling it was in fact the nvidia that killed your laptop…?

Aftab

By: Cobra

Cobra — Sun, 31 May 2009 18:52:43 +0000

Same problem as you have with my MacBook Pro, it will just not boot, power light is on CD/DVD making starting noise but the screen is black, I tried to do the usual stuff, memory swap, hard drive swap, reset most of the connectors (cables inside) and all the power reset tricks but no go. Today I decided to visit Apple store in NY. They checked the video card with some external tool that was connected to the USB connector and told me it’s not the NVidia controller (those are know to be falling on MacBook Pro) they will probably replace the Logic Board for a flat fee $310 plus tax. I’m not happy as this is a new MAC I have it for 18 months, those machines should definitely last longer…. I say Apple has problems with quality control… my G5 was replaced few months ago… coolant leak… what’s next Apple?

By: Mark

Mark — Sun, 24 May 2009 20:29:10 +0000

New logic board installed, all is well

By: Mark

Mark — Thu, 14 May 2009 10:39:36 +0000

Logic board is dead. But I found one cheap so out comes the tool kit!

By: lopau

lopau — Wed, 13 May 2009 06:43:40 +0000

This solution maybe far out but it worked, that is what the Apple techs did. Borrow a fully charged battery from another MBP and try to boot your MBP with it. If successful, turn off and swap back your old battery then plugged in the power and after a few mins try to boot. Hope it helps. If that doesnt work I fear the logic board is broken.

By: Mark

Mark — Mon, 11 May 2009 06:01:14 +0000

I dropped my MBP a few weeks ago. It worked fine for a few days then did the same thing: powers up, disk spins up, cd/dvd drive spins up, fans spin up, ‘sleep’ light is on, but no indications of it trying to boot. Black screen, no chime, nothing. An experienced repair expert disassembled it, unplugged all the different cables and reseated them, started reassembling and attempting restart along the way, all the while it looked like it was not going to work. Then out of the blue, it booted up as if nothing had ever happened, and worked perfectly for weeks. This evening it refuses to boot, back to the same all-powered and spinning but no attempt to boot and black screen.

I am at a loss. The only reasonable option I see is to replace it and sell it for parts. (The battery is fine, btw, and recharges fine. I’ve tried booting with and without the battery, with all variations of keys held down at start-up, tried booting from a CD …)

Any other suggestions?

By: kweku

kweku — Mon, 13 Apr 2009 20:56:56 +0000

Funny enough, this one just started doing that, haven’t tried booting without the battery though, let me try that now

By: lopau

lopau — Tue, 17 Feb 2009 06:46:34 +0000

For those who experienced similar problems. I just got the MBP checked up in an Apple Center, it does not necessarily mean that the logic board is broken. I had it checked up and I think they tried a different battery and it booted, they concluded the battery was broken.

I told them I also tried initially booting it with the power plugged in and it didn’t boot. Weird.

I got the MBP back without buying a new battery yet which cost about 7,000 pesos. I booted it up plugged in and amazingly it worked. And the battery started charging again. So try swapping the batteries first with one that is working.