The SanDisk SSD dashboard will notify you when FW updates are available but it is for Windows only. Since you are on Linux you can keep a watch on this board. If a FW update is released it will be posted and stickied at the top of this board. They will post a link to the ISO for the FW. You can burn that to a CD or create a bootable USB drive out of it. See below a FW update post for the Extreme Pro SSD for an example. Currently there are no FW updates available for the Ultra II SSD.
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