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Author Topic: Laptop boot black screen  (Read 6555 times)

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ultimatum

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    Laptop boot black screen
    « on: February 11, 2008, 08:47:59 AM »
    My friend's stopped functioning properly. This is the only information I was able to retrieve (Sony Vaio PCG-K33 Intel Pentium 4) about the laptop. Whenever he starts his laptop its shows the logo and then it blinks like its on to go to Windown XP logo loading but the screen just turns off to black yet the laptop is loading and fully functioning. He purchased the laptop about two months ago locally from someone else and didn't know that BIOS Setup has a password set which he doesn't know, but I think its accessible if password was available. If pressing F8 then the options of entering Safe Mode, Networking mode, etc. comes up but whenever I pick one the screen turns off again. No new software or hardware installed.

    Any help greatly appreciated. Thanks in advance.

    - Ultimatum
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    treslek

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    Re: Laptop boot black screen
    « Reply #1 on: February 14, 2008, 04:10:41 PM »
    hi there,
                 the problem you have here is a dud screen which sadly is expensive to replace ,there is a sure fire way to find out thou,do you have a monitor you can hook up to laptop?,if so try it and restart,as for the password  you mention these are normally left blank so just tap enter there and you should be away.
    good luck and let us know how it,s going.
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    patio

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    Re: Laptop boot black screen
    « Reply #2 on: February 14, 2008, 05:19:27 PM »
    Quote from: treslek on February 14, 2008, 04:10:41 PM
    hi there,
                 the problem you have here is a dud screen which sadly is expensive to replace ,there is a sure fire way to find out thou,do you have a monitor you can hook up to laptop?,if so try it and restart,as for the password  you mention these are normally left blank so just tap enter there and you should be away.
    good luck and let us know how it,s going.

    You can safely ignore this advice...
    If the screen was indeed a dud as stated you wouldn't see a splash screen or any logo at all...
    What has been changed on this laptop recently including software/hardware/RAM etc ? ?

    P.S. If in fact the laptop has been BIOS protected by a password and the seller does not have the password contact the manuf. and be prepared to pull out your wallet.
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    ultimatum

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      Re: Laptop boot black screen
      « Reply #3 on: February 14, 2008, 05:36:22 PM »
      As I mentioned no changes were made to hardware or software of any kind. treslek I tried the blank password as my first option it didn't work. I found a set of manufacture passwords as backdoor passwords that manufactures use to repair or change settings no matter what password you got set there but I haven't tried them yet. Before I started trying 100 passwords, do you guys know if there is such thing as backdoor passwords?
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      patio

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      Re: Laptop boot black screen
      « Reply #4 on: February 14, 2008, 07:15:37 PM »
      Some work ...some don't.
      In the case of a laptop they rarely get the job done.
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      ultimatum

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        Re: Laptop boot black screen
        « Reply #5 on: February 14, 2008, 10:49:30 PM »
        So, any thoughts on how to fix the problem?
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        patio

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        Re: Laptop boot black screen
        « Reply #6 on: February 15, 2008, 10:48:42 AM »
        Quote
        P.S. If in fact the laptop has been BIOS protected by a password and the seller does not have the password contact the manuf. and be prepared to pull out your wallet.
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        ultimatum

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          Re: Laptop boot black screen
          « Reply #7 on: February 15, 2008, 12:40:08 PM »
          Ok, but after I gain access to BIOS what should I do to solve the problem? I remember one time another friend of mine had the same problem with an old IBM laptop and all I did was changed video settings back and forth and it started working again, I'm not sure if this will work here too.
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          patio

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          Re: Laptop boot black screen
          « Reply #8 on: February 15, 2008, 12:49:08 PM »
          It may be as simple as that...you may have to re-install the onboard video drivers as well.
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          ultimatum

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            Re: Laptop boot black screen
            « Reply #9 on: February 15, 2008, 01:42:41 PM »
            The previous owner never passed driver CD on but finding video driver's online won't be a problem, how would I go about installing video drivers without windows access?
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            patio

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            Re: Laptop boot black screen
            « Reply #10 on: February 15, 2008, 02:05:34 PM »
            You won't.
            You are putting the cart before the horse.
            You need to solve problem A first.
            This involves a certified shop replacing the onboard EEEPROM chip from the manufacturer.
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            ultimatum

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              Re: Laptop boot black screen
              « Reply #11 on: February 15, 2008, 03:30:33 PM »
              Dang, how much would something like that cost?
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              patio

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              Re: Laptop boot black screen
              « Reply #12 on: February 16, 2008, 11:07:54 AM »
              Depends on the manufturer...i've seen work orders on IBM laptop EEPROM replacements for $140.00
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