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  • Forcing a Firmware Downgrade for Buffalo NAS Devices

    Posted on February 7th, 2013 Andy Parkes No comments

    I recently needed to return a Linkstation NAS back to a previous firmware version.

    When you download the update utility in the folder there is a file called LSUpdated.ini. In there I changed the “VersionCheck” flag from 1 to 0

    image

    After that running the update utility worked exactly the same as usual and it happily replaced the current firmware with an older version.

    This should also work with Terastation devices too.

    As always “use at your own risk, I’m not responsible for breaking your stuff, yada yada”

    Buffalo also have a very helpful article on their knowledge base which points out that you can change the “debug” flag which then allows you force the downgrade from within the utility itself.

    The main problem I had was actually getting hold of the older firmware.

    The download page on the Buffalo website on provided the latest version.

    The trick was to manipulate the URL as Buffalo still have the files on their site.

    For example.

    Version 1.64 is available on this link.

    http://www.buffalotech.com/support-and-downloads/download/ls_series-164.zip

    To get hold of version 1.37 i changed the numbers at the end to match.

    http://www.buffalotech.com/support-and-downloads/download/ls_series-137.zip

    I can’t make any promises on how long this will continue to work for though.

    Probably also worth noting, make sure you’re on the correct site.

    buffalotech.com is the USA site

    buffalo-technology.com is for Europe

    The Europe download site gives each file an ID number so it doesn’t quite work the same.

    For example

    Version 1.64 download link is

    http://www.buffalo-technology.com/en/download_file.php?r=153

    Note the 153 on the end.

    The release notes for that firmware are available on

    http://www.buffalo-technology.com/en/download_file.php?r=154

    154? Not helpful

    Just wanted to make a note of this someone as I’ll forget this by the end of the week! Hope it helps someone else.

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    Andy Parkes is Technical Director at Coventry based IT support company IBIT Solutions. He is also Microsoft Partner Area Lead for 2012-2013 and coordinates AMITPRO which is a peer group for IT Professionals in the Midlands area. He also isn't a fan of describing himself in the third person.

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