Morning Harald, thanks for getting back to me. For a little more context,
the problem I'm trying to solve is that I've written an android application
to update EF.IMSI, but I don't have a way to inform the UE of changes to
the files on the SIM. TS 31.102 has a note in Annex A that says if EF.IMSI
is changed through proactive UICC commands (which I'm NOT using, I just
thought this was a helpful reference), a REFRESH command should be sent
which would cause a 3G session reset which in turn updates the UE about
changes to the filesystem. Since I'm not using proactive UICC commands (and
it's my understanding that if I wanted to I would need to write an applet
to support that, correct?) I'm wondering if there's any other way for me to
trigger a 3G session reset. For context, the method I'm currently using to
make changes to the files is to simply open a logical channel with ADF.USIM
and send the SELECT and UPDATE BINARY APDUs over.

Any help or insight would be much appreciated!

On Tue, Jan 4, 2022 at 4:20 AM Harald Welte <[email protected]> wrote:

> Hi Bryan,
>
> On Tue, Dec 28, 2021 at 08:35:03AM -0500, bryan coxwell wrote:
> > I have a SysmoISIM-SJA2 which I believe doesn't have a CAT application
> and
> > doesn't support the SUSPEND APDU (per the manual). Given that, is there
> any
> > way to reset/refresh the card through APDU commands (or through any other
> > means)? Would something along the lines of deactivating and then
> > reactivating the USIM application work?
>
> can you please explain the use case?  What exactly do you want to
> refresh/reset,
> from which particular api/interface point of view?
>
>
> --
> - Harald Welte <[email protected]>
> http://laforge.gnumonks.org/
>
> ============================================================================
> "Privacy in residential applications is a desirable marketing option."
>                                                   (ETSI EN 300 175-7 Ch.
> A6)
>

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