I have an LG Ultrafine 5K (27MD5KA-B) monitor. I finally wanted to fix the volume issue and just found out that there should be a firmware update that is supposed to be installed through the LG Screen Manager software.
I've installed LG Screen Manager and it says that my monitor is up to date with version 3.01.,1.11, 5234,3.00
From what I've gathered, there should be at least version 3.04,1.13,5237,3.04,0.1e
I've also tried to find a firmware file to manually download, but all links I could find are dead, e.g.:
The monitor is from January 2017, so it is one of the earliest models that also suffered from the shielding issues (which has been fixed). It's attached to a 2016 MacBook Pro 15" Touchbar, still running MacOS High Sierra 10.13.6
I would appreciate any hints on how to update the firmware or links to the firmware file.
Update: I've just poked around LG Screen Manager with Charles Proxy and realized that it tries to fetch
FWLatestVersion.txt link above.