Comment 13 for bug 1332306

So this turns out to be yet another instance of us getting bitten by device-specific hardware behavior. I re-ran monitor-ofono on krillin (rtm/#33) and get the same output as @Jussi in comment #9.

That said, in this case when the SIM is removed on krillin, it requires the SimManager interface to be torn down and recreated in sequence, and thus the PropertyChanged can't be fired. The details of why this is true can be found in the comments to the following pull request:

https://github.com/rilmodem/ofono/pull/104

So...with that said, in order to catch SIM removal you need to:

 - watch for SimManager PropertyChanged ( 'Present' ) signals

 - watch for SimManager disappearance / appearance in the modem's 'Interfaces' property. Whenever 'SimManager' appears you need to read the initial state of 'Present'.