The Gevey SIM is an interposer tool that has beenlegallyquestionable by many. You might use a Gevey SIM tounlockyour iPhone 4 and might have noticed that Apple hasblockedthe exploit in iOS 5 Beta 2.

Fortunately. the folks over at RedmondPiefounda 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…

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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:

Follow these steps:

Step 1:Make sure todowngradeyour iPhone 4 back to 4.3.3. Don’t worry, Apple is still signing this firmware, so you won’t need to useTinyUmbrella. 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 usingSn0wbreeze, we have a tutorial on thathere. After that restore to that custom restore file.

Step 3:Make surenotto activate your iPhone with Apple’s servers. You will need to bypass this, which Gizmodo has atutorialon.

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 thenhang up. Note:If you let the call connect, you will have called 911 which isillegal.

Step 6:Go to the Settings app and toggle Airplane modeon.Wait about 30 seconds until the “No SIM card installed” pop up appears. Tapoktoggle Airplane modeoff.

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