Question for experts (IMSI code sent to network)

[mdkia]

Now I have a working iPhone ...a BIG thanks to this forum.


But I have a question:
with Sim-Emu I wrote on position 0 (zero) the IMSI, ICCID and KI of my provider SIM card and on position 9 the IMSI code of the AT&T SIM card
As I understood the AT&T IMSI is used to "fool" the iPhone to think that the new SIM card is the AT&T card, but which IMSI code is sent to the network? My SIM card code on position 0 (this means no problems for me :)) ...or the IMSI code on position 9?


Does anyone know this?

[marcodiver]

My understanding is that your provider IMSI code is sent out.
Last modification done by Vladi had the purpose to correct the fact that the IMSIb IMSIb IMSIa sequence was sending out once also the ATT IMSI code and that's not good.
So although i didn't edit Vladi source code the explanation was this one.

[mdkia]

marcodiver >

sorry it's not clear: did you use SIM_EMU_6.01_iPhone_u1 or the old version one?

[marcodiver]

i used the first version and it worked but, since Vladi discovered the double IMSI call as wrong i'm actually using the SIM_EMU_6.01_iPhone_u1 to avoid this potential problem