grcardsim: fails with "bad echo value"

historical

On Wed, Jan 31, 2018 at 02:49:34PM +0100, Marek Sebera wrote:
> Could you maybe tell me, because I haven't found anywhere in docs, which
> software and its version did you traced?

This was some 5 or more years ago.  Clearly I have no recollection of that.

I also don't see why I would or should invest time on this.  At the time
we sourced chinese magic and GRsim cards and developed pySim, it was not
possible to get small quantities of programmable cards in Europe or the US,
at least mot on the general/open market for a reasonable price, together
with knowhow or tools to program them.

We have achieved that goal at the time, and after a lot of painful
difficulties with GRcard, we have since moved to *much* better cards, and
they are generally available together with pySim, the sysmusim-util and
even a manual listing the APDUs and explaining the tools usage.

So the problem no longe exists.  If you need a small quantity of
programmable cards, you can obtain them at a very reasonable price.
Beforre we started offering the sysmoUSIM cards, we couldn't find
programmable SIM cards for under EUR 70 per unit.  Now we're at less
than 10% of that.  In low quantity, shipping globally, available to anyone
without going through a Quote/PO/... process.

And now you are asking us to spend time and help you with some other cards.
Cards of a supplier that has never done anything for the Osmocom or general
open source community, never released proper documentation or never
contributed any code.

You are free to do whatever you want by yourself, and we're very happy to
merge any related patches by anoyne interested in adding support for more
card types to pySim.  But please allow us to spend our time on development
of something that really matters, i.e. something that isn't already
possible today, rather than spending time on replicating something that's
already available to anyone for a very low price.  It will not bring the
capabilities of Open Source Mobile communications forward.  Or would you
disagree?

> Also is it possible this software has the USIM support within, and could
> be simply "traced" ? 

No.  At that point you couldn't even buy USIMs from GRcard.

I really think you should bother GRcard with those kind of questions.  If somebody is selling a
programmable SIM card to you, he should provide you with the tools to progam it.

You have obtained a product and want to use it.  It's not *our* job to help
you make use it.  It's the job of whoever sold you those cards.

Regards,
	Harald
-- 
- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
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