Where do we download the latest firmwire for Dell force10 S4810 switch?
The Force10 firmware is only available to systems under contract. You will need to login to the Force10 portal in order to access downloads for your switches.
Now, OS force10 version 8.3.12 can't upgrade direct to latest version and can't find old version on https://www.force10networks.com/CSPortal20/Software/SSeriesDownloads.aspx
First, I should be upgrade to version 9.1
Where I can download ?
At the bottom of the download page there is a small area that will take you to an archive page.
"Note: To see the full list of Supported Software downloads, please click here"
On that download page there is a link for 8.3.19, will that work for you?