Who's up for a challenge to resurrect a MBP?

Joined
Nov 24, 2011
Messages
26
Reaction score
0
Points
1
Greetings,

While cleaning out a storage closet in my wife's office, we came across a MBP (Model MB990LL/A). The MBP does not turn on, nor has any signs of life. When the power adapter is plugged in, it is orange in color. I tried resetting the SMC and the MBP is still unresponsive. At this point, I'm not sure what else to try to get the machine to power up. I'm willing to invest some money into this MBP to get it running again, but not too much since these seem to sell of $400-$500. Are there any other methods I could try to get this thing to power up without replacing any parts in it? If not, what are suggestions for parts to replace (obviously replacing what could most likely be the culprit). I appreciate any and all feedback and ideas, thank you!
 

chscag

Well-known member
Staff member
Admin
Joined
Jan 23, 2008
Messages
65,248
Reaction score
1,833
Points
113
Location
Keller, Texas
Your Mac's Specs
2017 27" iMac, 10.5" iPad Pro, iPhone 8, iPhone 11, iPhone 12 Mini, Numerous iPods, Monterey
If you're sure the power adapter charger (MagSafe) is OK, that leaves the battery and possibly the DC input board. A new battery for that model will run around $110 and may not get it going. Spending any more on a machine that's only worth maybe $400 - $500 will be self defeating.
 

Rod


Joined
Jun 12, 2011
Messages
9,696
Reaction score
1,882
Points
113
Location
Melbourne, Australia and Ubud, Bali, Indonesia
Your Mac's Specs
2021 M1 MacBook Pro 14" macOS 14.4.1, Mid 2010MacBook 13" iPhone 13 Pro max, iPad 6, Apple Watch SE.
Your MBP

When you say you found it does that mean it's not yours or your wife's. I'm only asking this because if it has a login password getting it to boot up may be just the beginning of your problems. You wont be able to do much with it without a user/admin password.:|
 
OP
R
Joined
Nov 24, 2011
Messages
26
Reaction score
0
Points
1
Thanks for the replies...

1) The MBP is ours, it was one of the first we purchased when starting the business.

2) The charger is working because the battery on the MBP shows a charge when you hit the little "button" by the battery. The charger also changes from amber to green when the battery is fully changed.

Is there anyway for me to test the power button to see if its working? This MBP is pretty beatup, I would not be surprised if the logic board is toast. (we found the MBP with the back cover off it). There does not appear to be any internal damage, but its hard to tell.
 
Joined
May 9, 2014
Messages
3
Reaction score
0
Points
1
Couple of things to check

1/ Do you get the start sound?
2/ Can you hear if the drive or fans start up?
 

Shop Amazon


Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
Top