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zishhaider · 09-01-2013, 15:39

the Test IMSI is an IMSI number that you should create follwoing the pattern 08091010xxxxxxxxxx. A SIM card with an IMSI such as that will not be blocked by the iPhone BB.

To create a test IMSI SIM card, you need to get a SIM card whose IMSI can be changed, a normal SIM card will not allow such change, there are some SIM cards that allow this such as Super SIM 16 in 1 Super Sim Card Backup, Copy, Duplicate, Clone, Reader, Writer Kit at Vavolo.com

Mr. Dill Huang suggests that first you insert you carrier SIM card, because its blocked you will only be able to make emergency calls, so dial 112 for emergency call, after 2 seconds hang up and switch to airplane mode, remove your carrier SIM card and insert your test SIM card which you create with the Test IMSI, switch off your airplane mode and the phone should go back to your carrier service, the BB will not block as the Test IMSI is unblocked by the BB (even if it is a locked BB, because this is a test IMSI).

Mr. Dill even displays this on YouTube, check it here iPhone 4 SIM Unlock: Test IMSI and 112 Exploit - YouTube

Even if the technique works, the iPhone will at some point in time (not sure about the timers) to refresh the IMSI and encryption keys from the SIM card, at which point it will not be able to get the correct original IMSI and encryption keys, so you will need to keep doing this, not to mention dialing the 112 number which could get answered! You can find this and more information at the following "unofficial" FAQ by Mr. Dill himself here Singularity: Unofficial Gevey FAQ

Source (test sim imsi - JailbreakQA )

09-01-2013, 15:39	#7 (permalink)
zishhaider No Life Poster Join Date: Jan 2009 Location: Root tunnel Age: 36 Posts: 2,250 Member: 952111 Status: Offline Sonork: I'm not using now. Thanks Meter: 713	the Test IMSI is an IMSI number that you should create follwoing the pattern 08091010xxxxxxxxxx. A SIM card with an IMSI such as that will not be blocked by the iPhone BB. To create a test IMSI SIM card, you need to get a SIM card whose IMSI can be changed, a normal SIM card will not allow such change, there are some SIM cards that allow this such as Super SIM 16 in 1 Super Sim Card Backup, Copy, Duplicate, Clone, Reader, Writer Kit at Vavolo.com Mr. Dill Huang suggests that first you insert you carrier SIM card, because its blocked you will only be able to make emergency calls, so dial 112 for emergency call, after 2 seconds hang up and switch to airplane mode, remove your carrier SIM card and insert your test SIM card which you create with the Test IMSI, switch off your airplane mode and the phone should go back to your carrier service, the BB will not block as the Test IMSI is unblocked by the BB (even if it is a locked BB, because this is a test IMSI). Mr. Dill even displays this on YouTube, check it here iPhone 4 SIM Unlock: Test IMSI and 112 Exploit - YouTube Even if the technique works, the iPhone will at some point in time (not sure about the timers) to refresh the IMSI and encryption keys from the SIM card, at which point it will not be able to get the correct original IMSI and encryption keys, so you will need to keep doing this, not to mention dialing the 112 number which could get answered! You can find this and more information at the following "unofficial" FAQ by Mr. Dill himself here Singularity: Unofficial Gevey FAQ Source (test sim imsi - JailbreakQA )