Previous 1 2 3 Next 374 Replies Latest reply: May 1, 2014 8:09 PM by EthanRT
Steve Eugene Level 1 Level 1 (0 points)
I've been dealing with this issue since early December myself.
I purchased the MBP in November and had nearly a month with out any issues.

I spent nearly two hours on the phone with Apple Care via a specialist trying to diagnose the problem yesterday.
He did mention that they believe neither the 10.5.1 update or the MBP 1.1 update were to blame for occurrence of this issue. (I remain slightly skeptical)

Let me give you a short rundown of my problems and what I've done to help resolve the issue. Hopefully it'll help some of you.. or help me (with some of everyone else insight) if it happens again.

The symptoms:
keyboard and trackpad become unresponsive.
The problem is intermittent but often is completely unresponsive at start up.
USB mouse and keyboards have full functionality.

Kernel panics often occur as well. Usually this occurs just after the keyboard and track pad experience extreme intermittent "on and off" periods.
The only option is to do a hard-restart which my or may not resolve the unresponsiveness.

Things I've addressed in my particular case:

1. The battery recall issue - my battery (6N745288YFTA) is OK.
2. Resetting the PMU - no change.
3. Re-installing both the 10.5.1 and MBP 1.1 updates - no effect.
4. pressing the Function + S key at start up and running /sbin/fsck -fy The HD is said to be OK
5. I just finished an Archive and reinstall of Leopard = this seems to have fixed the issue for the moment. I have not run the Updater to bring the OS back to it's fully updated form yet.


The Archive and Re-install DID NOT WORK.
Even upon downloading and installing the 10.5.1 and 1.1 update, I'm still back at square one.

I've also been experiencing these phantom keystrokes to the eject key and backlight myself lately.

I've resolved to wait for the 10.5.2 official release to see of that helps... If not then I'll break down and send my machine in for service.

_____________________________________
Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B05
SMC Version: 1.16f10
Sudden Motion Sensor:
State: Enabled

THE SOLUTION:

This is a HARDWARE problem!

After playing around with removing the battery and noticing that this often returned functionality to the keyboard I surmised that this had some sort of physical aspect.
Sure enough, there is a section of copper colored tape/wiring exposed in the batter slot that is slightly bowed where it's smallest.
When I depressed this with my finger tip on this portion to basically flatten it out flush against the housing; I found that all functionality was restored!

You can see the portion in the picture below.



I haven’t had any problems AT ALL since I took a piece of napkin and taped it down to sustain pressure on this portion of bowed tape/wiring.


I have yet to call AppleCare to see what they suggest I do.
I will post a reply here when I hear their suggestion.

Mac Book Pro, Mac OS X (10.5.1), 2.4 GHz Intel Core 2 Duo, 2 GB 667 MHz SDRAM
  • Allan Jones Level 7 Level 7 (33,015 points)
    Excellent detective work, Steve! I hope this helps others.

    The one factor that doesn't seem explained by a cable interference is that many of the people here who report the "ELP" issue say that it does not show up when they are booted into Windoze. Seems a bowed ribbon would affect either OS equally.

    Still, good work, sir. I hope this helps those missing letters.

    A

    Message was edited by: Allan Jones
  • Suneet Level 1 Level 1 (15 points)
    Nice one Steve, this completely explains why putting pressure on the battery on my mbp causes the keyboard and trackpad to instantly freeze up. I'm going to have a go as per your instructions....

    Suneet
  • Suneet Level 1 Level 1 (15 points)
    Steve, I just gave it a go. All that was needed was a strip of sellotape to flatten out the bowed area, and it worked. I've enjoyed my time in Tiger, but I'd be lying if I said I wasn't looking forward to returning to the lusciousness of Leopard.

    Cheers
  • Steve Eugene Level 1 Level 1 (0 points)
    Suneet, glad that this could be of service to you. It feels nice to get to the bottom of this. I've been on the verge of ripping some hair out for a few weeks now.

    To follow up... I just got off the phone with AppleCare.

    As I suspected they are requesting I send in my MBP for service.

    As well as the tape fix works, I would feel more comfortable having my hardware work intrinsically on its own without the help of some tape. Not to mention having it break further for some reason and having my warranty voided by apple by attributing it to my craftsmanship.

    This is unfortunate because as Ph.D. student I use this MBP everyday in the lab and not having it is going to leave me a little crippled academically.
    I love this machine to death, but as a first time mac user this hasn't been a great experience just three months after purchasing it.

    Regardless, this should be reason enough for Apple to raise their quality control standards... as it sounds like multiple people are having issues along the same vein.
    If anything this is a great example of where that extra cash spent on AppleCare has saved me even more heartache and stress.

    Message was edited by: Steve Eugene
  • pony down Level 1 Level 1 (0 points)
    hi just tried this 5 min. ago and it bloody WORX!!..wonder how many other people have these same kind of issues, because of some stupid bendt wire..
    thanx
  • zachhale Level 1 Level 1 (0 points)
    Well done! This has been driving me insane but your fix works perfectly! Thank you!
  • mattathayde Level 3 Level 3 (565 points)
    well since the machine is a currently made one you shouldnt be with out a machine for to long, when i had to get a HD replaced it was 48 hours from when i dropped it in the dhl box until it was waiting for me on my door step
    -matt
  • Steve Eugene Level 1 Level 1 (0 points)
    I sent out my computer for service last Monday via DHL.
    I received my fixed MBP today.

    A one week turn around isn't so bad, I suppose.

    They replaced two parts on my machine.
    If anyone is curious as to what they were I can post a reply with these details.

    Regardless, the issue has been fixed all together.

    Though the fix I posted above worked for the time being, I would suggest that all of you who have AppleCare or the cash to fix it... do so.
    Keeping my MBP working with a peice of tape just didn't feel right.
  • Bryan Tomlinson Level 1 Level 1 (0 points)
    A nice elegant solution! It looks like the connection between the conductive copper coloured tape and the receptor is flawed. But I'm glad I read these discussions before embarking upon reinstallations and the works!

    Cheers!
  • Suneet Level 1 Level 1 (15 points)
    OK, I'm back from exams. I've been surfing the forums for some sort of response from Apple, but nothing. Steve if you can post which parts they replaced, and if you have an idea what it would cost sans applecare I'd be very grateful. I'm back in England until the end of the week, so I may be able to organize something with Apple UK.

    Suneet
  • Steve Eugene Level 1 Level 1 (0 points)
    Parts as they are listed on my invoice:

    620-3977 TOP CASE MOD ASYY,M75
    658-0322 ASSY,KEYBOARD,M75


    As far as cost is concerned, I have no idea, but I'm sure those parts won't be too hard to track down on the internet.

    Glad I could be of help to everyone.
    I know this drove me near to insanity when it happened.
  • mattathayde Level 3 Level 3 (565 points)
    was it just like funning form point a to point b there were some bumps in it (i have 2 in mine IIRC one near the larger square and then one near where it enters the machine)

    i have had the elp problem a little bit then it mostly has disappeared so just trying to track stuff

    -matt
  • Fletch045 Level 1 Level 1 (0 points)
    I had this same issue. I had just upgraded to 10.5.2 when it happened, so I was convinced it was a software issue.

    Spent 2 hours on the phone with applecare and we could not solve the problem, so I need to send the computer in.

    I even did a clean install of Leopard.

    I just "lightly" pressed on the orange wiring, and it works (for how long, who can say?). I hope that Apple sees this issue and knows how to handle it for future problems.
  • RamzaMik Level 1 Level 1 (10 points)
    Well, i dont want you to have bad dreams about it,but here's my story.
    Bought a MBP from apple.store in January. Received it the 23rd of January 2008 and for 1 long and happy weeks every thing was great, untill neither my keyboard and my trackpad works. I took the phone and apple says me to go to a store location , what i did on december first. At the AppleStore in Canada,Quebec,laval(carrefour) the guy told me he couldnt change it with a new one because i bought it on apple.store, but after a little discussion he put me on the AppleProCare 48 hours repair wich i appreciate pretty much cauz i had my MBP back on the December 2nd(1day repair that is great).

    The part replaced are the following :
    KeyBOARD ASSY-USA 922-8035
    TOP CASE ASSY 922-8036

    This has solve my problem till...to day :febuary 25 (23 days after repair)
    My k-board and trackpad are gone..again.

    It is the exact same problem because when i take out the battery and place it back some times it works, some times not.

    I also tried the trick : push the tape-connector under the battery and **** it works and not only once, if i let my finger there i am able to type...but between me and you i expect some thing more from a 2300$ laptop and i think it is absolutely normal that im actually... ******-off, because this is wasting my time and today i was doing important programming at the University wich now are not done.

    I got a rendez-vous too day when i discover that the problem was back and i hope the guy in front of me will propose a replacement of the machine (2 repairs in the first month is not acceptable) or in the last case, i will again accept a repair under 48hours (apple Pro Care).

    I hope this will be read by most of the user out there having problem with their MBP, try the trick with the tape-connector and let Apple know that there is a problem of conception with your machine.

    I will give you more informations when i get back to the apple store tonight or tomorrow.

    Message was edited by: RamzaMik
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