Re: Incomplete trace (due to high-speed SIM?)

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