So it looks like it's still possible to hit this bug even with the updated urfkill from silo-0014 ( mentioned in comment #21 ).
Martti reported bug #1339794 while testing the pending Flight Mode UI which seems to cause the modem to stop responding to Online/Offline requests if FM is toggled too quickly. I traced this to urfkill not handling InProgress DBus errors from ofono.
It also turns out that when this occurs, it can also end up leaving WWAN soft=true, whereas all the remaining soft switches are false.
That said, the behavior of urfkill is much improved, and the basic FM UI works.
So it looks like it's still possible to hit this bug even with the updated urfkill from silo-0014 ( mentioned in comment #21 ).
Martti reported bug #1339794 while testing the pending Flight Mode UI which seems to cause the modem to stop responding to Online/Offline requests if FM is toggled too quickly. I traced this to urfkill not handling InProgress DBus errors from ofono.
It also turns out that when this occurs, it can also end up leaving WWAN soft=true, whereas all the remaining soft switches are false.
That said, the behavior of urfkill is much improved, and the basic FM UI works.