Hi,
we do not have simtrace. Yet.
When we receive simtrace we will be able to read and update you with captures of what is
on wire.
We can spare the SIM. It is a prepaid SIM. Why?
Regards,
Alojzij
-----Original Message-----
From: Sylvain Munaut [mailto:246tnt@gmail.com]
Sent: Thursday, April 05, 2012 2:16 PM
To: Alojzij Sinur
Cc: baseband-devel(a)lists.osmocom.org; Jaka Nemanic
Subject: Re: key generation on SIM failed (cause 2)
Hi,
SIM is new. It works if you start phone without
osmocom. And It also
works if you start without osmocom and when SIM logs into network you
restart the phone with osmocom.
We tried several new cards and there was always same result. There is
also no PIN set up (SIM is not locked). We tried with USIM.
When we try old cards (>2 years old) osmocom works without problem.
Have you ever encountered this kind of trouble? Is there any fix for it?
Interesting. Purely from the "symptoms", I'd guess that the sim starts in
USIM mode and somehow needs to switch into SIM mode to work with plain old GSM.
My understanding is that the SIM should do that on its own, but apparently doesn't.
And then when you start the official fw, it's properly switched to SIM mode and then
you can start osmocom. (I guess maybe capacitors keep VCC high enough for the sim to
survive a reboot ? altough it still should be reset).
Just a theory ... (and not a perfect one at that).
Do you have a simtrace to make captures of what's on the wire when talking to the
original fw / osmocom and compare ?
Can you spare a SIM ?
Cheers,
Sylvain