I have my own Expresslink 3.0 and updated my firmware from 2.0 to 4.0 a couple of weeks ago. As Shellboy mentioned, it only takes a couple of minutes and is easy to do as long as you have a wired connection to something like an Expresslink (or a Hi-Pro). The Genie software checks to see if a firmware update is available and then prompts you to update it using the included firmware updater.