Unlocking iPhone 4 with Gevey Turbo SIM Possible?

by Jeffry on March 16, 2011

There’s a new iPhone 4 unlocking method, which achieves a full unlock using only a Turbo SIM card. Gevey Turbo SIM is claiming to unlock your iPhone 4 on baseband like 02.10.04 and 03.10.01, for which the whole world is waiting anxiously.

What is Gevey Turbo SIM

It is actually a thin card that squeezes in alongside your usual SIM card to run the exploit. It spoofs your AT&T IMSI  number and authentication key (Ki) supplied by the SIM card to the network for misguiding the iPhone, then your card IMSI is used for network connection. It can then be used on any mobile network (like T-Mobile) with which they are technically compatible.

TurboSIM copies the information from your AT&T SIM card and then switch your AT&T SIM for your carrier SIM. This allows the Turbo SIM to append on your carrier SIM, and apparently gives you full calling, SMS capabilities. It does not require any complicated hardware or card readers. It is important to note that Apple could easily invalidate this hack with a firmware update.

Is Turbo SIM Method Legit or Fake?

This iPhone unlocking method is not new and carries a history behind it. In 2007, an Australian iPhone hacker ozbimmer successfully unlocked iPhone using TurboSIM and managed to get an iPhone to work on the Telstra network. Few months later, on February 8, 2008, Geohot developed the free software unlock for the iPhone’s then Bootloader Version 4.6. Since then, most of the iPhone users rely on Geohot or iPhone Dev team for unlocking it.

We may now safely assume that Gevey Turbo SIM might unlock your iPhone 4 as well. The team even posted a video, demonstrating full iPhone 4 unlocking on baseband 02.10.04 and 03.10.01.

Reactions of Hacker Community

It’s POSITIVE! iPhone hacker Musclenerd of iPhone Dev Team has not completely denied the credibility of Gevey’s SIM. According to him, in 2007, Turbo SIM was a nice programmable SIM interposer board with a long/mixed history with iPhone. Unlike software unlocking method like ultrasn0w, these SIM interposers can take advantage of bugs in SIM Toolkit (STK). He concluded saying that hardware SIM interposers can’t use any bugs that we can, and we can’t use any bugs they can.

[blackbirdpie url="https://twitter.com/#!/MuscleNerd/status/47933455518007296"]

[blackbirdpie url="https://twitter.com/#!/MuscleNerd/status/47940768660332545"]

Gevey Turbo SIM Pricing and Availability

GEVEY SIM  is available from ApplenBerry on March 18 or 21, shipping worldwide except China. There are no pricing yet for GEVEY turbo sim, it will be determine on launch date which should be on March 18 or March 21.

[blackbirdpie url="https://twitter.com/#!/ApplenBerry/status/48168937648685056"]

Buy Gevey Turbo SIM or wait for Ultrasn0w?

Unlike ultrasn0w which comes free, this piggyback SIM card will cost you anything between $20 to $40. Currently, iPhone Dev Team is hard at work to bruteforce crack the unique 40-bit NCK key on the device by coming weekend, which can then be used to unlock iPhone 4 permanently. We would advise you to wait for Dev Team’s statement before buying it.

[Update 1]: How Gevey SIM Unlocks iPhone 4 On Baseband 2.10.04 / 3.10.01

As always, we will update you about every bit of information trickling-in from hackers community. Just follow us on Twitter or become a Facebook fan. You may also like to check out:

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  • Domshiwe

    Whenever I turn my 3g on the network goes off. its like 3g disables the turbo sim… help 

  • nitin

    my iphone 4(4.2.1 and 3.10.1) is working with turbo sim but my safari and face talk is not working with it. need help

  • Fawaskp

    Gevey is not working on my IPhone 4 (4.2.1 with Baseband 03. SIM is OK. No message appears, only “no SIM” on the top left. Flight mode on/off changes nothing. Did everything like in the Gevey-YouTube-Video

  • Art9_j

    you need to downgrade the firmware to 4.2.1

  • Hans

    Gevey is not working on my IPhone 4 (4.3.2 with Baseband 04.10.01). SIM is OK. No message appears, only “no SIM” on the top left. Flight mode on/off changes nothing. Did everything like in the Gevey-YouTube-Video

    • Art9_j

      you need to downgrade the firmware to 4.2.1

  • Jeffry McDowell

    How Gevey SIM Unlocks iPhone 4 On Baseband 2.10.04 and 3.10.01 http://t.co/ezSXo8p

  • aDl

    will this work for AT&T Locked iphone 4, because i have seen in the video, on the menu -> settings -> Generals -> about -> Carries – says something different as carrier Lab 8.0 instead of AT&T 8.0 where all the AT&T locked iphone,

    and its show’s like that before inserting the Gevey Turbo SIM as on video.. personally im happy if this works perfect on all the countries rather than demonstrated on this video as china ;)


  • Paaniiquaye

    i always wondered why Apple had to introduce the micro sim card. could it be to avoid the use of turbo sim cards which are the same size as standard sim cards? there is really no conceivable or convincing reason for reducing the sim card size. or no?

  • Paaniiquaye

    it appears to come with a customized sim card tray. i guess we have to look at it as part of the sim card tray and hence a permanent feature

  • Fantasys_boy

    So anyone can tell me clear about Turbo sim ??? My question is ?? we need to put Turbo sim in Iphone 4ever or we just put ony in the first time ?

    • iROCK

      Does it even matter? As long long awaited unlock works!!!

      • iROCK

        as long as**** (damn iPad virtual keyboard)

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