MacBookPro9,2 minor logic board corrosion

I recently purchased a 2012 MacBook Pro 2.9 GHz i7 on eBay. It functions perfectly. When I received it, I opened the bottom case to replace the optical drive with an SSD. When I did that, I saw a fairly small amount of corrosion on the logic board. This was not described in the eBay auction. The seller offered to accept a return. I'm hesitant to do that because it was a good deal ($750), though I think maybe I should because the corrosion could cause problems in the future. Does anyone know if the corrosion is likely to prevent the machine from working in the future? I might try to get a partial refund and keep the laptop. I've attached some photos. I'd appreciate any expertise.

I would return it. It will probably cost you more than $750 to replace the logic board if it fails. I'd even go so far as to say WHEN it fails.

Similar Messages

Logic board corrosion?

My daughter has a Powerbook 1.5G aluminum 12" that has been running slow for a year or so, she got it new in 2005. The computer has had beach balls and general slowness. yesterday she took it to a genius bar and was told it was definitely slower than it should be, and that the cause was likely softwear or impending hard drive failure. My daughter said recently the computer made a repetive clicking noise, only one time; she had reported this to me about a week ago.
The genius said it should be checked by Apple if due to software, the drive should be reformatted, or else, whatever was wrong should be repaired. Today, she found a message at the repair status link saying to call Apple. She called and was told there was corrosion on the logic board which could only have been caused by spilling liquid on the powerbook, and because of this the repair would not be covered by her AppleCare warranty.
She is adamant that she has never spilled anything on the computer and that no one but her has used it. She is upset that the repair won't be covered because she hasn't done anything to damage the computer, she babies the computer and goes crazy if there's the slightest smudge on it.
Other than liquid spilling on a powerbook, what else could cause corrosion on the logic board? She says that at their previous apartment there was mold in the apartment, and she wonders if this could've caused the corrosion on the logic board. Does this sound like a possibility? Does anyone know if there is any appeal to Apple about this, any reasonable argument that the corrosion was not due to her negligence, but from some other unknown cause beyond her control and knowledge?
MBP 2.16 15" 1Ghz,PBG4 1.5Ghz 12"512MB 80GB, PBG4 1Ghz12" 768M 80G Mac OS X (10.4.9) AirportXreme,AirportXpress,iPod,iBook12"dualUSB

Thanks for your reply. That's helpful to hear that the symptoms the computer was sent in for are not explained by logic board damage. The genius bar person didn't characterize it as a logic board related problem; she said it was likely the hard drive failing or need to be reformatted. whatever the cause of corrosion of the logic board, why should that have anything to do with a problem not related to the logic board?
I think she should contact customer relations or a repair supervisor about that, or an AppleCare rep. I have the same kind of computer she has. I just read over the terms and conditions in the documentation that came with my AppleCare policy. It says "1(b) Limitations: Plan does not cover: (ii) Damage to the covered equipment caused by accident, abuse, neglect, misuse....extreme environment (including extreme temperatures or extreme humidity)...."
One thing that stands out to me here is that it says 'does not cover damage caused by...' If the hard drive is faulty, that isn't caused by corrosion on the logic board; if they want to say the supposed liquid spilled on the logic board may have also damaged the hard drive, maybe so, but that's very speculative. It's already speculative to say corrosion on the logic board was caused by spilled liquid in the first place.
Also, if they look at her computer, they can see it hasn't been abused or misused--she's had it since fall of 05 and it doesn't have any dents or scratches--she has really cared for it. (i wish i could say the same about mine :-o )
As for extreme humidity, i don't think so. They lived in San Diego--it gets hot in the summer but it's coastal Southern California--it's hardly extreme weather.
If they want to insist that corrosion on the logic board voids the warranty on the hard drive (and that's not at all clear by the wording of the policy, as i'm reading it) it still remains that she denies ever spilling anything on it, and to look at it, you can see it's been well protected, so i think they have good reason to give her the benefit of the doubt. They say corrosion is absolute proof there was liquid spilled on it. I don't think that's reasonable. But if so, how do we know it wasn't spilled on before it was shipped to her? It's not like Apple never has any new computers with quality control problems.
You're right, replacing a hard drive isn't too expensive, so if that's the problem, at least it's not too much of a disaster (although she is very short on money, being between jobs). But she is one of your more loyal passionate Apple advocates, and feels betrayed tonight. Until today, she had no idea there was any logic board corrosion, she just followed the advice of the geniius bar to send it in for repair and wasn't prepared for what happened.
MBP 2.16 15" 1Ghz,PBG4 1.5Ghz 12"512MB 80GB, PBG4 1Ghz12" 768M 80G Mac OS X (10.4.9) AirportXreme,AirportXpress,iPod,iBook12"dualUSB

How long until corrosion is visable on logic board

I was told that the logic board was corroded. , service guy said it was a water spill. never happened, honest to god, so perhaps condensation high humidity ?.how long would it take for the corrosion to become so bad and noticable white stuff that the MBP dies.?
did it get shipped to me that way?
I had mine 10 months indoors no water. average humidity.. dead
my brother lives in mexico and he has high humidity and his is fine 3 years later.
i don't understand.

Did you purchase new?
Corrosion does not form in normal conditions. Apple defines this as:
Relative humidity: 0% to 90% noncondensing
you can be in a very cold place, then enter a warm humid place and water can condense on the cold surfaces. Did the person that reported the corrosion provide you with pictures?
Here is a link to the operating specs of a MacBook Pro. I would guess the specs on yours are not too different:
http://store.apple.com/us/browse/home/shop_mac/family/macbook_pro/select
seach for "Electrical and Operating Requirements"

Late 2008 MBP 15-inch corrosion on logic board (photo) -- won't turn on

My MPB late 2008 15-inch won't turn on. I get a black screen, the sleep light is solid, the hard drive hums, but then after 3 seconds it turns off. POST portion of bootup won't run. After reading some on these boards I figure its the logic board.
Took it into the apple store, they say water or user-caused damage. $1200 bucks to fix (i'm out of warranty, but i guess it wouldn't be covered on warranty any how). Might as well buy a new comp at that price. I have never spilled water or other liquids on this or used it in otherwise wet environments, but it is what it is.
Went home, opened up the comp to see the logic board's damage, and it does look like there is some corrision (see below in photo, copper/salt covered bit).
So I'm looking to repair on my own with third-party. I'm wondering if anyone else has seen this sort of "corrsion" before and succeeded in switchign out the logic board and getting the computer working again?
If its salvageable, i've got a quote from a local guy who can do it for $330 with one year warranty on the whole computer. Is that a decent price?
Thanks for any help.

sure, make sure you unplug the power, take out the battery and hold the power button for like 15 seconds or so with the battery out and the power not plugged in.
make sure you're on a static free surface or make sure you've grounded your body .
let it sit for a while after you've done this, and make sure you're using the right rubbing alcohol. There is one that is 99% I believe.

Apple says "logic board needs replaced" because MBP won't turn on w/o SMC reset but I think I can fix it; can you help?

Hello,
Less than a year after purchasing a brand new, early-2011 Macbook Pro (still covered under Extended Apple Care) and, sadly, only a week or two after finally upgrading to 8GB RAM, I returned to my notebook after taking a shower and watched it suddenly shut itself down. It has not been responsive to the power button since then (although, see below.. I think I can fix it).
Genius Bar took one look at the visible moisture sensor you can see underneath where the RAM sits and declared it water-damaged. While I agree that either a short and/or corrosion is causing my MBP to malfunction, I don't believe it should void my warranty because the problem isn't that I spilled something on it.1
I hope someone can give me some insight into fixing this myself. Apple says "the Logic Board needs replaced" (a common CS response, I've noticed) the water damage voids my Extended Care + that it'll be at least $1200 and several weeks. Here's the situation:
MBP will not turn on just by pressing the power button. However, MBP consistently (every time) powers up when I do an SMC reset.
I have it in verbose mode and it begins booting. But, it will invariably turn off without warning anywhere between 30 seconds and 8-10 minutes after powering up.
MBP will not turn on just by pressing the power button. However, MBP consistently (every time) powers up when I do an SMC reset.
I have it in verbose mode and it begins booting. But, it will invariably turn off without warning anywhere between 30 seconds and 5 minutes of powering up.
Eighty percent of the time, it turns off during the pre-Xorg boot. However, I have also seen it fully boot, I log in, I'm able to peruse logfiles/etc. Safe Mode (holding shift) crashes early. Single-user mode makes no difference. PRAM/NVRAM/etc makes no difference. I can boot to the Recovery Partition but it turns off just the same (disk utility scan takes too long).
I haven't been able to really test the Internet Recovery because the hotel wireless takes too long. I did boot into Hardware Test and it passed the basic and extended tests (although it seemed to just be testing the RAM integrity.
I can boot from the optical drive with a FreeBSD 9 livecd and an Ubuntu 11.04 livecd. Of note is that the laptop shuts off consistently when FreeBSD begins the journaling services for the ZFS filesystem (every time).
Here is where this leads me to believe I'm at (I am not dogmatic here and would appreciate any corrections or insight):
It seems like there may be corrosive damage on the logic board but maybe it's isolated given the various consistencies in what's happening. It seems like whenever SATA is use, I lose power. When SATA isn't really used (the HW Test), the laptop has literally stayed on for days and days.
I want to get in there and clean up any corrosion with 91% isopropyl alcohol (9% distilled, non-conductive water).
I want to use a bootable OSX livecd with an "emergency console" so I can, basically, use boot options to step throught the boot process and see if I can isolate the problem.
Here is what I'm uncertain about and could use guidance:
Does any of this sound remotely reasonable to anyone who has been through this or am I delusional?
Any tips on identifying and cleaning any corrosion?
While I had made a bootable version of Lion via Disk Utility and a rescue disk with some third-party app, they are MIA and I don't have another Mac at the moment. Do I have any other options? Again, an install dvd is not exactly what I want -- more like a rescue dvd. I had read about some Apple Stores giving/copying bootable USB thumb drives like this to customers. But, I noticed that this is now on sale there for $80. I would use this like once and, ideally, could use my MBP to make more. $80 seems a bit much.
I should be able to step through the boot process in a way like what's possible with FreeBSD, no?
Anyone have any other specific troubleshooting tips?
I really, reallly need my MBP back as soon as possible. I'd really appreciate any wisdom and insight! Thank you,
-ryan
To be totally honest, about 3 weeks prior I spilled some milk from cereal on the desk and a little bit got onto the battery. However, the notebook worked fine for the following weeks. I believe that the problems have been caused by ambient humidity ... I've been staying in a hotel that steams up the entire room when I take a shower. The windows are covered in water droplets so why wouldnt the MBP be affected? As noted, these problems began after I lingered in a hot shower.

multiplryan wrote:
To be totally honest, about 3 weeks prior I spilled some milk from cereal on the desk and a little bit got onto the battery.
I don't think you have a case.
You can replace the logic board yourself if you are a DIY'er and save some money.

What's wrong with my drive? Dead Drive? ATA controller? Logic Board?

Hi!
I have had a problem with my iBook G4 1.33GHz for a while now. I've tried a few times to fix it and then have given up thinking replacement was the best option. I'll try to be brief but this saga has actually been going on for over 2 years.
The basic problem is that the computer finds the HD intermittently. The problem used to occur after the computer had booted and was on for maybe an hour. A friend of mine removed the drive and had it running in a separate enclosure for a few days. It seemed fine-all disk checkers like Disk Warrior checked it out just fine. He reinstalled the drive and gave me back the computer. Within a few days, it froze like before. Upon restart I just get the question mark folder.
That was almost 2 years ago. I've tried a few different things to see what was the problem but to no avail. Here's what I have tried:
-Booting into target disk mode-the disk does not mount.
-Booting from a CD-even if I hold down the C key, it prompts that this is going to be a new install and when I get to the screen to pick the volume, the HD does not appear.
-Tried the shim trick as indicated at:
http://coreyarnold.org/ibook/?p=20
Some earlier symptoms included video issues so this made sense.
-Took apart yesterday to make sure the drive connected well. It didn't work at first but later booted from hard drive.
-Since it booted, I restarted in Target Disk mode and ran Disk Utility from my iMac. There were some errors but DU was able to fix them all. Restarted iBook no problem.
-Ran Apple Hardware Test overnight in loop mode. After 18 rounds, nothing came up.
-Ran SMART Reporter and got green.
-Thought everything was ok so I ran Software Update. First round went fine. I ran it a second time knowing that some updates can be incremental. Upon downloading, computer froze and since then I am back to square one-no booting.
-Took apart today to see if there was any corrosion on the ATA chip as mentioned in this article:
http://discussions.apple.com/thread.jspa?threadID=2310290&tstart=0
as the thread mentioned a lot of stuff I was experiencing.
-Reassembled after finding nothing.
-Now the computer does not boot whatsoever-it tries to eject disk in optical drive and then nothing else-no sounds, no video, etc.
So what does all of this mean? I thought the earlier indicators were a dying drive but when my friend checked it out and found nothing, we were stumped. He actually suggested the ATA controller. The not wanting to boot from a CD really bothers me. What does that mean? I have never seen that in 20 years of using Macs.
Oh and if it matters, this computer was formerly fixed as it did have the dreaded logic board problem.
Any help would be greatly appreciated!
Thank you!
Brian

Hi again!
So this is with the new board? Was there sectoring of the lines?
If so that's the graphics chip most likely.
Yes. However, since this has gone on for a while and I never finished taking care of it, I can't remember all the details like sectoring of the lines.
The problem used to occur after the computer had booted and was on for maybe an hour.
So it freezes? That does sound like a GPU problem esp as it happens after an hour or so. (thermal flex causing separation of BGA)
Normally, yes. I have also gotten the kernel panic screen (You must restart your computer now). When it froze this morning, I had started to download a System Update. The clock ran, but I couldn't force-quit anything. What about the fact that the drive doesn't mount in Target Disk Mode?
You could pull the board and send it for reball.
I've also found a few boards on eBay that so far are less than the reball, but unless it was already reballed, then I run the risk of this happening again in the future, right?
Thanks again for your help!
Brian

Macbook logic board, restart, exchange

hi everyone, as of last weekend, i became a happy owner of a black macbook....that is until when the weekend ended. that's when i discovered these forums.
unfortunately, i became a part of a 'growing minority' of ppl who have the random restarting problem, vertical lines, and sudden shutdowns. i spent all of last night researching this issue and found out two words that have become the kryptonite of macusers....logic board.
today i stumbled across some pretty interesting information about the logic boards. not sure about the source of the information but it's food for thought nonetheless. i had my macbook for 3 days until the random restarting started happening. prior to that, i had no problems with any whining, mooing or heating issues commonly associated to the early release of the macbook. i came across this http://news.softpedia.com/news/Apple-Acknowledges-MacBook-Whine-And-Offers-Logic -Board-Replacements-31384.shtml
which states: Apple is now providing logic board replacements for the whining MacBooks with the expected time for repair being ten days after the machine has arrived at an Apple certified repair center.
i'm not sure if these mooing machines had the restarting problem but if they didn't, the 'new' logic boards are in need of change once again. i think this is important b/c if this is the case, all macbooks in production will sooner or later experience the same problem that is plaguing the rather large minority of macbook owners.
so, i'm left with the dilemma of exchanging my macbook for a new one or just get a refund altogether. i've read that ppl who have got new logic boards were left with the same problem only a short time after words meaning the logic boards they are using to replace the 'faulty' ones are the same ones being used in production.
i'm not sure if this is a case of lemons or if every macbook is a ticking time bomb. if i'm not mistaken, it was only released in may.
i have a week 27 black macbook. failed after 3 days of normal use. i just don't want my second machine to crap out on me on the 15th day and have to worry about repairing it indefinately. thoughts?

I have what I can only describe as a lemon. It discolored, trackpad button broke, and whining started within a month of owning it. After 3 weeks in repair, it came back without having the logic board replaced, which was supposedly the reason it was on hold for 2 of the 3 weeks.
At this point, I called AppleCare, talked with a guy, and ended up going into an Apple store 2 hours away from my home, and instead of fixing it on the spot like the AppleCare tech said they would, the "Genius Bar" techs kept it for a week, waiting for a logic board that they would actually PUT IN the unit this time around.
It just came back yesterday, and had the same whining problem. Apparently, replacing the board did nothing at all. I just decided to go with QuietMBP at the expense of some battery life to keep things quiet (10% false bottom on CPU activity at all times)... Chuggin' along just fine for a day, then just a few hours ago, it started to randomly shut off. I turned it back on a few times, but it would turn itself right off again. The unit was **** hot, too.
I ran a diagnostic and it turns out a fan failed on the logic board. Hence the auto-shutting-off due to high temperatures. Fantastic.
To summarize: I had the MacBook for 1 month, sent it back for repairs for 3 weeks, got it back (w/o a whine fix) for 2 days, left it at an Apple Store for 1 week, got it back (w/o a whine fix) for 2 days, and now a fan is dead. To top it all off, one of the Geniuses at the Apple Store said I failed their memory test, so my 3rd party RAM is bad as well.
Suffice to say, I am going to attempt to get a replacement, since a refund isn't do-able as I already spent more than $500 in software liscenses for Mac-only software...
You're not alone in your woes.

Logic board liquid damage of macbook pro retina display late 2012

there were water spilled on my macbook pro 13" retina (late 2012) and I sent it to apple service in Trieste, Italy and they said that the logic board is damaged and I need a new one with a new top case.. which costs as buying a new macbook..is there any suggestions or alternative cheaper way to fix it?!
i will in any price cheaper than buying a new one..

I see nasty corrosion on that logic board
whoever told you they could genuinely "fix" it , lied to you
I also know for 100% certain theyre not going to desolder any of those micro-connections and add new components.
among the laptop repair community, thats called L.C.D. (lost cause destruction) , ...when it exceeds new-unit replacement cost.

Macbook Pro Video problems stemming from logic board

Recently my MacBook Pro 15" 2.4 GHZ started acting odd. Doing normal (i.e. nothing too CPU/Video card taxing) the monitor would work fine But it almost always happens immediately when playing a game, WoW for example. Then the display would show random odd characters and colors, almost as if the laptop went into a fit of rage. This almost never happens when surfing the web, using a text editor, etc.
I called Apple tech support and scheduled an appointment with a local reseller. The attendant there hooked up a device that quickly said something about a "4v video display adapter" not functioning correctly. She informed me that this meant the logic board was bad. I was quoted something about $310, but since I don't have that much to spend atm I didn't ask her for details.
My only real question at this point is how much does something like this cost to repair/replace? If it is the $310 (before shipping and handling of course) then I'm almost happy. If it turns out to be too much more then I will have to consider relegating my favorite laptop to minor duties and consider buying something else.
Thanks for any info/help with this.
Message was edited by: Robomrvn

Yesterday my laptop became emotionally distressed...my screen went berserk, diagonal lines everywhere. I rushed to the apple store and met with a genius, unfortunately he was unable to help me...I almost dished out $310 to send it in for service.
After multiple hardware and software diagnostics (Techtool Pro, ASD, Disk utility, Disk warrior, and Drive Genius) I could not find the problem. Then I came to the conclusion that maybe there are new default settings from new Snow Leopard update (10.6.3). MBP’s default fan speed...The GPU was overheating and creating a distorted video signal. How did figure it out you might ask, well I put the laptop in the freezer for 3 min and guess what, the screen went back to normal (Somewhat impatient). Then, I found little app that let's you adjust the fan speed RPM.
*smcFanControl 2.2.2* Control Intel Mac fans to make it run cooler.
http://www.macupdate.com/info.php/id/23049
Also, I will recommend a widget called iStat Pro and it also has a matching iPhone app to monitor your laptop temperature and other important info from afar.
http://www.macupdate.com/info.php/id/20364/istat-pro
I am somewhat concerned though, did overheating the GPU cause lasting damage to my logic board?Time will tell. Also, is this a issue that Apple should look into....Yes.

Change logic board - MacBook Core Duo

Hello,
I would like my MacBook1,1 to run Yosemite (or Mountain Lion). I have to change the processor, but I saw when I tried to remove the old processor, that it was impossible to remove it ! I have to change the logic board, but which one is compatible with my MacBook equipment (battery connector, AirPort, BT, Keyboard, case...)
Please help me,
MB11

A word of advice: Purchase a newer used or refurbished Mac computer fully capable of running OS X 10.8 Mountain Lion, and preferably with 10.8 already installed, so you can see how the system performs.
The oldest compatible models for OS X 10.8 Mountain Lion are listed by Apple here:
System requirements for OS X Mountain Lion
You can always choose to install the free OS X 10.10 Yosemite upgrade later.
https://www.apple.com/osx/how-to-upgrade/
Instead of buying random parts that might not even work together, save your money until you have enough to purchase a complete newer Mac system that was designed for the newer operating system. While the absolute minimum RAM specification for Mountain Lion, Mavericks, and Yosemite is 2GB, they will run MUCH better with at least 4GB RAM.
Trying to convert a 7- or 8-year-old computer to run a current operating system is a huge waste of money, time, and effort. Parts for old MacBooks are expensive. There are many minor changes between models that appear to be the same on the outside, making it nearly impossible to put just one part from a newer computer into your older case. The "unibody" white MacBooks from 2009 and newer that WILL run Mavericks and Yosemite are VASTLY different inside than your MacBook 1,1. There are multiple reasons why Apple chose not to extend backward compatibility to Mac models as old as yours: Limited processing power, limited graphics capability, and limited maximum system RAM.

Logic Board Location Mac

So the other day my friend accedentally spilt some orange juice on my macbook pro 13' laptop. However, it only was spilt on the "] \ delete rightreturn right shift keys and my computer is still working. All of the keys are functional, just a tad bit sticky. I was wondering if I should be worried about corrosion on the logic board from the location of the spill.
Thanks in advance.

You should be worried. There's a big probability that your logic board was damaged when you spilt that liquid, apart from the keys you mentioned.
My advice is to make a backup of your files and take your computer to an Apple Store or reseller to see if your logic board is damaged. Note that your MacBook may be working now and fail at any moment if liquid affected to the logic board. You can also check the logic board yourself and check for corrosion. If there's not corrosion, continue using your computer, and if there is, take your computer to an Apple Store or reseller

Logic board replaced, SN is now "SystemSerialNumb"

Ever since my first logic board replacement System Profiler lists my "Serial Number:" as "SystemSerialNumb"
Anyone know how to fix this? I made a point to tell the service tech about the issue before my 2nd logic board replacement and asked them to make sure it was "registered" properly this time - but no luck this time either.
13" Macbook | 2 GHz | 1 GB RAM | Mac OS X (10.4.7)

I just got an answer to this issue from AppleCare....
Your serial number is tied directly to (and encoded on) your main logic board from the factory. When you receive a replacement logic board, the replacement does not have a serial number encoded on it (to prevent from having your serial number change and thus having a mismatch between the one stored in ROM on the board and the one attached to the label in the battery bay).
So, long story short - if your logic board gets replaced you will not ever get the old (or a new) serial number to display in the system profiler. I guess this is minor annoyance that we have to live with....okay, I'm over it. I'm just glad to know I can stop trying.

2010 MBP 13.3 Lags and Fan on High Logic Board?

Hello Everyone,
I recently was given a 2010 Macbook Pro 2.4 13.3. When I got it the computer lagged really bad, and the fan is stuck on high. With that and the backlight for the keyboard not lit, I suspected the logic board but when I went to disk utility I could not see the hard drive and it would not show any partitions. I replaced the hard drive and booted the computer in internet recovery and the same thing happens, when it is on during internet recovery, when you are selecting the wireless router the mouse works great and it is super fast, but as soon as it begins to load and start the internet recovery it starts lagging really bad.
One weird thing I noticed that its doing was during one of the installation process the fans slowed down to normal for about 30 seconds. During this time the mouse did not lag and the thing was moving quite quickly. But every time I attempt to reinstall OSX it says it was not able to install the program because of a missing file, and quits.
So no I can't reinstall anything. the keyboard light is out and the fans on high. I tried SMC reset and NVRAM and neither made a difference. So I took the logic board out, cleaned it super good, shows no signs of liquid damage or corrosion. Reinstalled and still the same issues.
I guess the long story question here is do you think its a logic board going bad? I am going to try and reboot with an individual stick of ram to see if that makes a difference but I feel the combination of the lights out and the fan on high tends to make me think that the board is not happy.
Any thoughts, and if you think its a board, any suggestions where to repair or replace for the best price. For a free MBP I am not afraid to spend a few bucks to add this to my arsenal of macs.
Thanks
Keith

2010 shipped with 2 DVD. The AHT is one one of those DVD. Boot off the DVD by holding the c key.
from the link above-
Using Apple Hardware Test on computers with OS X 10.5.5 to 10.6.7
AHT is located on the Applications Install Disc 2 and should be included with your computer or the MacBook Air Software Reinstall Drive on a MacBook Air (Late 2010). To start AHT on these computers make sure the Applications Install Disc 2 is inserted into the built-in optical drive, external Apple Superdrive, or for the MacBook Air (Late 2010) be sure the MacBook Air Software Reinstall Drive is inserted into a USB port. Please then follow steps 1-6 outlined in the "Using Apple Hardware Test on computers with OS X 10.7 or later" section of this article.

New MBP logic board and wireless internet does not work anymore

hi there
i had to change the logic board in my only 2 years old MBP15". i purchased a new one and put it in by myself (relatively easy task). i still use the same internal HD as this one still works fine, so all data are the same.
however, the new logic board has obviously a different "identity" from my old one, it came with a sticker which says "ethernet ID 001FF3513E7A" which is different from before. this may be the reason i can still access my wireless network at home, but the self assigned IP address prevents me from connecting to the internet. all settings are as before and it worked always without a problem.
all settings were "automatic" before (using DHCP), and i use exactly the same settings again, but no success. i have to add that i use a new mac mini in the same network with absolutely identical settings (automatic) and this one receives a free IP address from the router (which is only in the last number different from the router's), but the MBP shows a totally different IP address.
i could finally fix it switching to "manual" and adding the same IP address the mini is using and just changed the last number, which has to be different from the time capsule i use as wireless device and the mini. like this everything works just fine.
but why does the mac mini perform everything automatic and the MBP (even with the new ethernet ID - and especially since i connect wireless and not using ethernet) is not able to do so?
i worry if i want to use the internet in any wifi hot spot i may run into troubles...
any idea what the difference between these two machines (with identical settings) is?
thanks and cheers
george

Thank you. It didn't work unfortunately :((
Here are my router's details (Huawei):
Product name HG655b
Device ID 00E0FC-21530307237S0B028701
Hardware version VER.C
Firmware version V100R001C02B018
Batch number RWC3P0.010.29066
Physical address 5C:4C:A9:A5:41:B0
System up time 0 days 0 hours 15 minutes 56 seconds
I don't have Mac filtering enabled.
Now it doesn't even find the wireless network anymore...
My computer and itouch are connected to WAP, but the iphone could not connect to WAP, but only WEP.
Any other ideas?
Thanks a lot!

Has the NVidia GeForce 8600M GT logic board replacement program been extended by a year?

I have heard that the logic board replacement program for MacBooks Pro with the failed NVidia 8600M GT chip has been extended from 3 to 4 years after the date of original purchase. However, a local AASP had no knowledge of such an extension. Is this true? I have a MacBook Pro 17" 2.6GHz that was purchased in 2008.

eww wrote:
when you took it in, it had been more than four years since your 2007 machine was originally sold, that's why you got the response you did.
Actually it was within the time frame, it felt like it was just last month, when it was like several months ago.
Just dragged the 15" recently out to see to use it for testing *cough* and low and behold it's worthless now.
The problem I have is I told them at the Genius Bar the video was going, but couldn't prove it as it was very rare it occured.
But they ran their little tests and gave me a load of crap, now it's dead. $2500 down the toilet.
I know what did it, Lion. Lion was the cause, it ran like a fine machine under Snow, fscking Lion, I'm glad I didn't put that POS on my new 17"
http://reviews.cnet.com/8301-13727_7-20091204-263/graphics-issues-plaguing-os-x- 10.7-lion-upgrades/
My word the OP, don't let the Genius Bar screw you with the same crap they gave me, call corporate and raise ****!

MacBookPro9,2 minor logic board corrosion

Similar Messages

Maybe you are looking for