Sometimes won't power on, only has black screen & power light

Sometimes won't power on, only has black screen & power light

Hi! I've got a 15" aluminum Pro that is not behaving. Typically when powered on, the optical makes its startup noise, the screen stays black, and the sleep light glows. The chime noise does NOT sound. Occasionally when I try various things such as reseating/changing the RAM, pulling the battery, etc., I'm able to get it to power on, screen and chime and all, and to act perfectly. When it does this it stays working for most of a day, but just when I think it's "fixed", it goes back to black screen/glowing sleep light mode. I've ruled out AC, battery, memory, and the memory slots.

Asked by: Guest | Views: 192

Total answers/comments: 4

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bert [Entry]

"SIMRAN

@simransingh

Rep: 6.3k

24

39

5"

bert [Entry]

This is going to be either a bad NVIDIA or GPU solders and needs to be reflowed. I own mobilemactechs.com and I do them all the time for $250.

bert [Entry]

"You have bga problem, need rework or reballing this bga chip.This solve your problem.

We are in Spain and we have a profesional bga rework machine to do this work,if you need contact us.

www.netcomplanet.com

Best regards,

Pablo Figueira."

bert [Entry]

"Hello. I'm wondering what the final solution was as I'm having the exact same problem.

One addition, I noticed the mac running hot and see some damage to the plastic strip that runs along the hinged side. The damage may have been there previously and I just noticed it, or the machine could have gotten hot enough to melt the edge of the plastic.

I'm not at all technically savvy, but I've been using macs since the beginning. If any answer could be broken down into layperson's terms, that would be fantastic.

Thanks in advance!

MHP"