I install elementary OS on ThinkPad T480s. Everything works accept modem Fibocom Cat6 L830-EB 4G LTE. I install "modem manager gui" and UI shows an error "Modem is not ready for operation. Please wait while modem is being prepared..."
I tried to do the same on linux mint 18.3 - the modem works.
Have somebody any idea how to fix this?