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Holger Hans Peter Freyther holger at freyther.deOn 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