If you been following the iOS 5 beta news and information you likely to know by know that Apple blocked the Gevey SIM unlocking method in iOS 5 beta 2. Gevey SIM was the only method to unlock any iPhone on nay baseband until Apple blocked it on iOS beta 2.

Gevey SIM iOS 5But luckily if you’re an unlocker and updated to iOS 5 beta 2 there’s is a way of of bypassing Apple method of blocking Gevey SIM and get you unlock back. The folks at RedmondPie found out a way to unlock iPhone 4 on iOS 5 beta 2.  Follow the instructions posted by them and you should get you’re iPhone unlock on iOS 5 beta 2 using your Gevey SIM.

What you’ll need:

  1. An iPhone.
  2. The iOS 5 Beta 2 .IPSW, which you can get from Apple’s Developer Site, as long as you have an Apple Developer Site account.
  3. The latest version of Sn0wbreeze, which you can get from here.
  4. A GEVEY Ultra SIM card, which you can get from ApplenBerry.

This method gets requires more user intervention than previous ones, but it should pay off.

Follow these steps:

Follow these steps:
Step 1: Downgrade your iPhone 4 from iOS 5 Beta 2 to iOS 4.3.3. Since Apple is still signing IOS 4.3.3 firmware, simply restoring from iTunes to 4.3.3 will do the job. This will also downgrade your baseband from 4.11.06 to 4.10.01 (required for GEVEY SIM to work).
Step 2: Create a custom iOS 5 beta 2 firmware without the upgraded baseband using Sn0wbreeze. If you’ve never used this tool, follow this tutorial. Then proceed to loading the custom .IPSW you’ve just created onto your phone.

Step 3: Do not activate your phone with Apple. Instead, get around the activation process like we’ve specified on an earlier write-up. Do not insert your GEVEY SIM at this point yet.

Step 4: Power off your phone if you haven’t already. Then, insert your GEVEY SIM, along with the SIM card you intend to use. Keep in mind that you might have to slightly cut your SIM card in order for it to fit the iPhone’s micro-SIM slot. Make sure the GEVEY SIM is placed underneath your SIM card.

Step 5: Once you’ve inserted both SIM cards, you’re ready to power your phone back on. Once it’s done booting up, wait for one signal bar to appear. Once it does, call 112. After two seconds, hang up. You don’t want to flood your town’s emergency services, do you?

Step 6: Access the phone’s settings and turn on Airplane mode. Leave it on for 45 seconds and ignore all the “No SIM card installed” errors that might pop up. Once you’ve waited 45 seconds, it should be safe to turn Airplane mode back off.

That’s it! Your iPhone 4 on iOS 5 Beta 2 should now be unlocked!