The Gevey SIM is an interposer tool that has been legally questionable by many. You might use a Gevey SIM to unlock your iPhone 4 and might have noticed that Apple has blocked the exploit in iOS 5 Beta 2.

Fortunately. the folks over at RedmondPie found a workaround to getting the Gevey SIM to work on iOS 5 Beta 2. In this method, we will show you how to unlock your iPhone 4 running iOS 5 beta 2 with a Gevey SIM…

This method requires a lot of time, a paid Apple Developer account and Windows. Also make sure that the Gevey SIM is not in your iPhone 4 until the end of Step 4.

What you’ll need:

  • An iPhone 4
  • The iOS 5 Beta 2 .IPSW file which is available in the Apple Developer Portal
  • The latest version of Sn0wbreeze, which can be obtained here
  • A Gevey SIM from ApplenBerry

Follow these steps:

Step 1: Make sure to downgrade your iPhone 4 back to 4.3.3. Don’t worry, Apple is still signing this firmware, so you won’t need to use TinyUmbrella. This will also downgrade your baseband to 04.10.01 and the Gevey SIM will now work. Make sure to hold the SHIFT key when you click restore, and then select the 4.3.3 IPSW. file.

Step 2: Create a custom iOS 5 Beta 2 restore file using Sn0wbreeze, we have a tutorial on that here. After that restore to that custom restore file.

Step 3: Make sure not to activate your iPhone with Apple’s servers. You will need to bypass this, which Gizmodo has a tutorial on.

Step 4: Remember to make sure your phone is powered off. Then, insert your Gevey SIM with the SIM card you want to use into the SIM card slot on your iPhone.

Step 5: Once your Gevey SIM is inserted into your iPhone, power it back on. When it’s on, wait a couple of seconds for one signal bar to appear. Then accept the Gevey SIM screen, and open the Phone application. Call 112 and wait for 2 seconds then hang up. Note: If you let the call connect, you will have called 911 which is illegal.

Step 6: Go to the Settings app and toggle Airplane mode on. Wait about 30 seconds until the “No SIM card installed” pop up appears. Tap ok toggle Airplane mode off.

You’re done! Your iPhone 4 will now be unlocked! Have questions or comments about these steps? Leave them in the comments below.

  • Fi2o

    I don’t understand, why wait till sept. 4 if you are a developer?

  • Mick

    It says STEP not SEPT lol

    • Fi2o

      oh well, damn, my bad for quick reading.

      • Evoss


  • Fi2o

    And, please, stop saying dialing 112 is ilegal, it *may* be ilegal in some countries, but there are other countries in which is not, like, for example, where I live. If I dial 112 and wait more than 10 secs. all I’ll get is a “cannot connect call” message or something like that.

    P.S.: Sorry for the double post.

  • Ken

    sorry if my question is far from topic.
    I have jailbroken iphone 3GS, iOS 4.3.3, baseband 06.15.00 which is ipad baseband.
    my question is, can it possible to upgrade to iOS 5 beta 2 using snowbreeze and can it be unlock using ultrasnow?
    I will be appreciate your help

    • No, that’s not possible. If you’re on the 06.15.00 baseband you’re stuck there for good. They still haven’t figured a way to downgrade a modern iPhone’s baseband (only possible on iPhone 3G with older bootloader version) so there’s no way out.

      • Zech

        Its possible on the iPhone 4. Keep in mind that they use two different baseband chips.

  • Sorry to bust your bubble, but downgrading the baseband is NOT possible. If it were, we’d all be downgrading to a untrasn0w-able basband.

    • Zech

      Actually it is. With normal firmwares it is not possible but since this is the beta it is possible. I upgraded to iOS 5 Beta 2 and noticed my Gevey SIM wasn’t working, so I downgraded back to beta 1 along with my baseband.

      • I honestly doubt it. There may be many other reasons why your Gevey stopped working on iOS 5.

    • iMac

      It’s possible as long as the firmware is still being signed by apple. So going back to 4.3.3 does bring you down from 4.11 – > 4.10.

  • @Zech The iPhone 4 cannot be upgraded to baseband 06.15.00 so your point, even if true (which it isn’t), is still irrelevant to @Ken’s question. The iPhone 3GS baseband cannot be downgraded from 06.15.00.

    • Zech

      I wasn’t responding to Ken’s question. I was responding to your comment about downgrading the baseband is impossible. Was that a response to Ken or about the iPhone 4 is what I’m confused about?

  • Evoss

    download latest sn0wbreeze, download iOS 5.0b2, start sn0wbreeze and point it to iOS 5.0b2 that you just downloaded and wait till sn0wbreeze finish his work.
    download iREB and follow the instructions on how to put your iphone in DFU mode, wait till iREB finish and after that open iTunes and make restore (Shift+restore and select custom iOS file) with custom iOS that sn0wbreeze make for you and save it on your desktop.
    wait till itunes finish restoring and you are done.

  • Georg W. Bush

    iOS 5 Beta 2 Apple’s servers bypass is fixed in this beta. Also do you have to preserve the Baseband from 04.10? I will try this tonight and see what the deal is and I will make a YouTube Video.

  • iMac

    Hmm, I’m getting error code 10 while restoring to the custom IPSW…

    • gtr32x

      Same on iPhone 3GS at 06.15. When trying to upgrade to iOS5 beta 2 with snowbreeze 2.8b3.5 returns me an error 10. Has anyone been able to upgrade to iOS5 on 06.15 in a 3GS? Even iOS5 beta 1?

  • iname

    This seems to be talking about the original gevey sim, what about the ultra version. Is there a different process with this?

  • did some guys test it?

  • Steven

    what if I got my UDID activated already?

  • Steven

    what if I got my UDID activated already??

  • Hibbbbbbb

  • aaab

    will this work with iphone 4, ios 5 and basbeand of 5.11.08? PLEASE HELP