W520-downgrade bios, is it possible?

Hello

I have a BIOS 1.38 W520. I would go back to the bios 1.36. I read that it is possible, but could not find more information about this. Could I find the old version of the bios.

Someone at - it experience with this or knows how it can be done?

Thank you

/ Free software

I read that it is possible from the rear at the BIOS level, but I've never needed to do.

you will find the latest versions to your W520 from matrix driver here:

http://support.Lenovo.com/en_US/research/hints-or-tips/detail.page?&docid=HT063273
-ISO BIOS: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS018887
-EXE BIOS: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS018884

Scroll down to the bottom of each page for the links. personally, I prefer to use the bootable cd method to update. never had a ThinkPad bricked in 15 years.

HTH.

Tags: ThinkPad Notebooks

Similar Questions

  • Downgrade BIOS on Satellite A210-183

    I need your help.

    I must downgrade BIOS from 1.80 to the previous version. I have haveproblem with my sound card (not recognizing the device now).

    Hello!

    It is not possible to downgrade the BIOS version, because only the most recent BIOS is available on the European driver Toshiba page.

    As far as I know that an ASP (authorized service provider) would be able to downgrade the BIOS.

    However, the new BIOS that is available on the Toshiba page should make no trouble.
    In your case I would recommend you first access the BIOS and set the defaults.

    Good bye

  • HP Compaq 610 ((Intel PVU): how to downgrade bios on Compaq 610?)

    How downgrade the bios on Compaq 610? I got bios ver. F.20

    I want BIOS version f.08!

  • Satellite P875 - cannot downgrade BIOS from 1.50 to 130

    Hello

    The BIOS cannot do a downgrade with the insyde utility flash bios utility from Toshiba.
    IT SAYS-"the version is not current the current version |" What should I do dear Toshiba?

    I assume that expensive Toshiba will say: contact the closest service provider and ask for help.
    By the way: where you find the older version of BIOS?

  • Downgrade BIOS?

    Hello

    I have a laptop Acer Aspire VN7 - 791-G and I upgraderd the firmware BIOS 1.07 to 1.11 (last)

    Now the system feels a bit unstable, sometimes it freezes for a few seconds when opening programs, videos, games, while multitasking, etc.

    I also had 2 blue screens of the dead, never had any BSOD because purchase and I did not something differently before and after the upgrade, the reason for which I've updated is simply because I want to keep my devices updated all the time and it's the only thing I've updated recently.

    Is there anyway that I can get down to 1.07?

    I think you have to use version 1.10

    I downgraded the BIOS on an Acer desktop a few nights ago and had no problem.

    But then again, my BIOS is flashed through BACK.  I see that yours is an application.  Someone has found a workaround for version control:

    http://community.Acer.com/T5/notebooks-netbooks/aspire-v3-772G-BIOS-downgrade/m-p/305412#U305412

  • Aspire V3 - 772G. Downgrade BIOS

    Hi all

    After you have installed the version 1.15 of the BIOS of my FAN works almost constantly. Is there a way to downgrade to version 1.13?

    Will, Te, full reset to factory settings?

    Thank you very much and good day,

    Alexander

    Yes you can downgrade your bios, look at this topic:

    http://community.Acer.com/T5/notebooks-netbooks/aspire-v3-772g-driver-issues/TD-p/127713/page/2

    The decommissioning of the BIOS is as follows.  Unpack the VA70V108.exe with something like WinRar or 7-Zip and then in the platform.ini find "[Bios_Version_Check]" and edit "flag = 1" to "flag = 0" after that, save the ini file and run the InsydeFlash.exe as administrator. That's how I lowered my BIOS.

  • The limitation on the W520 with BIOS update?

    Hey everybody,

    My decision was very long, and whenever I get the motivation to upgrade to a W520, I always get worried about the forums. My main concern the limitation on the battery and the blocked processor clock. Since the last update of the BIOS, is it resolved? I can handle a small limitation on battery but 800 MHz is all just ridiculous. Before that I have finally let go of my money, buy the W520 in confidence that there is always these problems? I'll have to use this machine for at least 5 years, and if I have to start with these problems, I won't be a happy camper.

    Thank you.

    Hey, J,

    I think you get a view polarized the W520 on this forum. It is a solid and reliable machine. The limitation of problems have been resolved there are some revisions of the BIOS.

    Yes, it is not perfect in every way. However, it is a boon to the developer of this software. Yes, I use it to do the real work.

    Now that I've sung his praises, I'll do a 180 in saying that I would wait for the "W530" at this late stage of the game. This is probably only a few months at sea and can represent a significant improvement.

    BTW: If you want to get one, you will get a better deal by the way for one of the pre-built reseller like Amazon or Buy.com. It is much cheaper to do it and then upgrade only to have Lenovo customize it for you.

    For example, I went this route:

    Amazon W520

    I saw this as low as $1360 model. You can throw in a load of RAM for not much money.

    I wanted to talk, Buy.com stocks often this machine, and they have a 45 day return policy.

    There is my 2 cents.

    ZZ

  • S3-391 BIOS UEFI update possible?

    Hello.

    I have a S3-391-6497 that came with Windows 7.

    It currently has BIOS 1.29.

    If I level to UEFI 2.17, it would feature Fast Boot of Windows 8 ?

    (I'm aware that he has need of GPT partitions and perhaps other technical adjustments)

    Thank you.

    No, you can't.

    You cannot mix versions of BIOS, so:

    BIOS 1.x can be updated only with 1.x

    BIOS 2.x can be updated only with 2.x

  • Downgrade in LR 4 possible if I dislike LR CC?

    I have 4 installed LR and consider trying LR CC (testversion for 30 days). If I want to go back to LR 4, can I go down to my installed LR 4? No problem with that?

    CC of Lightroom will be installed in addition to your 4 of Lightroom. When you start Lightroom CC it prompts you to update your Lightroom 4 catalog. If you choose to do so, all your work that you have done previously will be CC with Lightroom. The updated catalog will be added your original Lightroom 4 catalogue. If Lightroom 4 will be left alone and intact and usable. No matter what work you do in Lightroom CC added to what you had previously will be in a catalogue Lightroom 4 will not recognize. However, these new images will always be on your hard drive and you can import them into Lightroom 4.

  • Satellite A100-151: BIOS Downgrade

    Hello

    I upgraded my BIOS Notebook´s to Version 1.80.
    Now, I have some problems of grafical (screen looks a bit like JPG-arthefacts). Not nice.
    Is it possible to downgrade the (before the upgrade is recorded) BIOS-file BIOS. BAK?
    If the answer is "Yes", if you please tell me how to do it.

    Thanx, Carsten

    Hi alter ;)

    I read in this forum that it of not possible to downgrade the BIOS.
    Only the Toshiba service partner can do. In my opinion, they use special tools for downgrade BIOS.

  • Satellite P - can I downgrade the BIOS?

    I've updated the BIOS in my laptop 4.50 to 4.70 and what happened?
    I got stuttering graph problem once again.

    I don't know what to do because they made my computer junk again.

    I would like to reflash the BIOS to version 4.50.
    How to do? Where can I find the previous flash version?

    Are you really sure that the new BIOS is the reason for this problem?
    You Flash the BIOS right and you have loaded default settings after flashing?

    What do you mean with problems graphics stuttering? Can you explain this please?

    I put t know what phone you have but a downgrade of BIOS is not possible. This is possible only from an authorized service provider.

  • Re: How to make a downgrade from the Bios?

    Hello

    I did a Bios upgrade (2.30), but now, the avid media composer do not work...
    How can I do a downgrade bios?

    Thank you.

    Hello

    Downgrade a BIOS you will need previous, traditional version of BIOS.
    These BIOS is not available for download.
    Only the most recent victory based BIOS is available for download.
    So that means that only Toshiba authorized service provider would be able to downgrade the BIOS.

    But I put t think that this new version of the BIOS is the reason for the question with avid media compose.
    What problem do you have exactly?

  • Satellite L50 - C - 29V BIOS 1.50 downgrade to 1.20

    Hello

    Anyone know if
    (a) the laptop allows firmware downgrades?
    the old firmwares b) are stored somewhere publicly?

    Best regards, Timo

    Hello

    Why would you do that?

    Your is a new pc was released end of 2015 if I'm not mistaken. And if I'm right, he made out with 1.50v bios already. Since you did not already done a bios update and are good all workers, why would you want a downgrade to a version which had never been installed on your machine?

    Be really carefully when it came to an update or the bios down since it can make your machine does not work properly or does not work. This isn't an OS upgrade/downgrade... I hope that you understand that the bios should do to a machine.

    Now to answer you:

    (a) I don't know
    (b) http://support.toshiba.com/support/v...tentId=4004549 (this may help, but be careful because this isn't for your machine!)

    GL

    PS: I am a user that you are, and I assume no responsibility in case your downgrade bios does not.

  • Satellite A200 (PSAE6) - I want to downgrade the BIOS

    Hello and sorry for my bad English (I'm french nobody's perfect ^^)

    I want to downgrade BIOS because since I install 2.6 on Vista 64, I have a lot of freeze (PC freeze 30 seconds each about 5 minutes). After updating the BIOS, I don't have this problem.

    So if you know where I can download version 2.5 or 2.4 BIOS, you save me the life.

    Thank you very much and excuse my English again.

    Hello

    > After update BIOS, I don't have this problem.
    And why you want to downgrade the BIOS?
    Sorry, but it's a little confusing.

    Anyway, a BIOS upgrade peut t be done. As far as I know that this can only be done from an authorized service provider.
    Contact the nearest, explain the situation and technicians will help you.

    Welcome them

  • Satellite A300 - BIOS downgrade after upgrading the BIOS

    I did an upgrade of BIOS of victory of version 1.6 of 2.10 - at the recommendation of the Toshiba site, for my laptop A300 1N0 - model PSAGUE.
    Touchpad no longer works. I have 2 operating systems, XP and W7 is the same.

    I start the laptop with the Windows Live CD and Ubuntu Livecd and nothing has changed.
    The mouse works, but the touchpad is still dead.
    Any advice?

    How can I find the old version of the BIOS to do a downgrade?

    Try contacting the Toshiba authorized service provider in your country. They have access to the database of Toshiba and the access to the Archives of BIOS.
    I'm sure that they can send you old BIOS version and you can downgrade BIOS on your laptop.

Maybe you are looking for

  • Phantom calls

    I get calls missed other iPhones and that they receive from me I have 5 lines

  • Profile.VI of setpoint for the Triangle CDEx

    Hello In the example Profile.vi set point for the Triangle CDEx in LabVIEW 2009.Can display us a triangular step or any other signal instead of this waveform?

  • LabVIEW XY Graph - Y multiples

    I'll use the XY-graph to display an X and 3 value Axes. Like this: http://www.eng.auburn.edu/~niuguof/2210labdev/html/_images/bjt-iv.png How can I do? I tried the waveform graph, but to have an X axis. And I have a loop where I generate data. Can I d

  • Vista Service Pack 1: Error Code 80010108

    I need help installing vista service pack 1.  I tried to install it but I got the error code 80010108.  Vista service pack 2 installed successfully but I need service Pack1 to install Office Home and Student 2010 on my computer.  Help, please.

  • P5LP - Incompatible with 1 GB card video and/or 2.1 PCI Express card?

    I have an old m7480n I am upgrading the video card.  I found and read many post on the problems of upgrade to 2.1 PCI Express card or current cards with 1 GB of memory.  I need the answer to help me make the right choice of video card. Or just tell m