On Fri, Jan 10, 2020 at 10:05:25AM -0700, 'smee via Dng wrote:

> I powered off, removed and replaced the battery, and booted up again
> and wifi works fine still. So it appears the nonfree firmware wasn't
> needed for anything on my install, at least so far.

By comparison, the wifi in my Thinkpad T420 requires the non-free firmware:

    iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6205 AGN,
    REV=0xB0

-- 
Mason Loring Bliss             mason@???            Ewige Blumenkraft!
(if awake 'sleep (aref #(sleep dream) (random 2))) -- Hamlet, Act III, Scene I