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12-28-2007, 08:28 PM
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[1.1.2 OTB] Unlocking idea (maybe reeeally stupid)
A stupid question...
The "No SIM Installed" is popping up when I remove the SIM. OK? Is it possible to hack the ICCID retriever, so it will always be the AT&T's sim-ICCID? So when I remove the AT&T sim, I won't get the NO SIM message, and I'll be able to insert my Vodafone sim. So, the AT&T will be used only for booting... I mean that MAYBE the bootloader boots when the ICCID changes. So, if the bootloader is already booted and the ICCID won' t change, then we are done!! I might have not understand some things and some ppl are laughing w/ what I 'm thinking... Please let me know if there is a possibility for this! 
__________________
iPhone 8GB 1.1.2 OTB (US week 47) working with NextSIM... but still waiting for a software unlock!  iPhone news & more: visit y3k.gr         
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12-28-2007, 08:42 PM
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I'm not an expert about iPhone and I don't quite understand reverse engineering result from IDA though I did try to analysis BL4.6 DUMP, but as far as I know, the ICCID check code resides in Baseband, which is impossible to flash without valid seczone with greater version than that in 1.1.2 OTB or Apple's billion-dollar private RSA key signed application. So there's no way to hack in baseband code to hook event when remove SIM from iPhone, just because the code should be injected into baseband (SECOND ARM processor), but currently, injected code only executes in OSX (OS ARM processor). That's the reason Dev Team is waiting for new baseband release to extract new seczone to modify current baseband.
You idea is really the way to go, but currently blocked by Apple.
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