*Holger Hans Peter Freyther* holger at freyther.de
<simtrace%40lists.osmocom.org?Subject=Re%3A%20Incomplete%20trace%20%28due%20to%20high-speed%20SIM%3F%29&In-Reply-To=%3C20130522102301.GP14728%40xiaoyu.lan%3E>
*Wed May 22 12:23:01 CEST 2013*
| On Tue, May 21, 2013 at 03:53:45PM +0200, Arthur Léna wrote:
| >* I tried booting the iPhone using 2 different SIMs (this one from *
| >* Free Mobile and another one) and the trace seems very short using
| *>* the Free Mobile in comparison to the other one. By parsing the ATRs
| *>* of both SIMs, I found out that the communication is done at 312500
| *>* bits/s with the Free Mobile SIM and only 78125 bits/s (for a clock
| *>* running at 5MHz). Could this explain the loss of entire ADPUs by the *
| >* tracer? If yes, is there a way to remedy to this problem (firmware *
| >* update for example).
*| Some people reported success by reducing the size of buffered bytes in
the
| firmware.
| holger
Holger
There appears to be numerous references to "decrease the buffer in the
firmware" to workaround the problem of losing bytes... but
can you clarify which buffer to decrease, in which source file?
I am guessing it's the req_ctx.c / req_ctx.h?
Thanks
Dear Correspondence,
For my academic research, I am interested on the SIMTrace product. I need
to know about the transmitted data between 3G/4G USIM and the ME. Does
SIMtrace help me to know that?
Kind regards,
Shafi
________________________________
*(Mohammed Shafiul Alam Khan)*
PhD Student, Information Security Group (ISG), Royal Holloway, University
of London (RHUL),
Egham, Surrey TW20 0EX, UK.
Mobile # *074 5920 8017*
Official E-mail # Mohammed.Khan.2013(a)live.rhul.ac.uk
AND
Faculty (On Leave), Institute of Information Technology,
University of Dhaka, Dhaka, BANGLADESH
