Tag Archives: SIM Adapter

[iPhone] iPhone 3G allegedly unlocked using SIM Adapter

[Update] Aug/25th/2008: read here, everything you gotta know about Proxy SIM solutions.

The Brazilian based company DesbloqueioBr.com.br claims to have unlocked the 3G iPhone. The whole procedure is like a deja-vu. It is said it works almost the same like with TurboSIM for the “old” iPhone. The difference is they say they make use of a faked IMSI test card, while Bladox’ TurboSIM solution emulated an AT&T card.

The Theory behind

The guys at DesbloqueioBr claim that the iPhone 3G only checks on first card detection (means after hot-swapping or after reboot) for the type of SIM. It is said it checks the IMSI code. During card-detection, the IMSI test card emulation now returns that it is a test card. The next requests to the card will then be answered by the normal SIM card. Same working like with the TurboSIM, except that the TurboSIM was coded to emulate an AT&T card during card detection stage.


Since this has not been confirmed on forums and the video provided (see below) doesn’t show the unlock procedure, this is likely to be a rip-off. Anyway for proving the theory the iPhone Dev Team already provided a sample application for the TurboSIM, that does exactly what the theory requires: emulating a test IMSI at card detection stage. As of now there is no feedback. For legal reasons we cannot link the application, as we are located in Germany. During the next 24 hours google will index the page that contains the link, search for lamesaft-0.1.zip then.


The video provided does not clarify how the unlock is performed. It simply shows a call being made from one iPhone to the other. It does not show the SIM adapter to be taken out. Moreover you still need to have the iPhone 3G activated. Currently there is no application available to do this. People on forums report that the DesbloqueioBr guys seem not to be willing to answer concrete questions.

Since there is no prove: we currently classify the DesbloqueioBr SIM adapter as SCAM. Update: at 00:29 the video shows the model as MB046LL, which could be identified as a U.S. american AT&T locked iPhone 3G (see model list here). This model obviously works with a different carrier (not AT&T, but TIM) in a different country (not the US, but Brazil).

Here’s the video that shows calls being made from one iPhone to another. The guy is talking portuguese, a translation is not available.

empty line for distance to the text.