iOS 5 was unleashed for public release just few days ago and we had earlier posted our tutorial on how to Jailbreak iOS 5 using RedsnOw 0.9.9b5. Now users who wish to unlock their iPhone 4 or 3GS on iOS 5 can do that easily using UltrasnOw 1.2.4 or Gevey SIM.
The update was made by MuscleNerd, one if the prominent member of the iOS Jailbreak Community. In the tweet he made MuscleNerd has announced the updated version of UltrasnOw for iOS 5.
This updated version of UltrasnOw 1.2.4 allows users to unlock their iPhone to use on other than the Official carriers. Hence you can now freely use your device on any network. You just have to Jailbreak your device and later install Cydia and add a new Repo to install UltrasnOw to unlock their iOS 5 based iPhone. It is developed by none other than the iPhone Dev Team.
Gevey SIM is a hardware based unlock. iPhone users can unlock their device on earlier basebands including the 04.10.01. However the latest basebands in the iOS 5 are not supported by the Gevey SIM yet.
Before we head to the detailed step by step tutorial on how to Unlock your iOS 5 device we would like to bring it to your notice that earlier versions of basebands are only supported till now. So it is compatible with 01.59.00 for iPhone 4 and 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00 for iPhone 3GS. The Gevey SIM too is working for the iOS 5 with older iOS 4.x baseband only for now.
Before you can Unlock your device you need to Jailbreak your iOS 5 devcie. For a detailed step by step tutorial head to our Jailbreak Guide Using RedsnOw 0.9.9b5.
So basically now as the briefing is over all you have to check your baseband if it is compatible you can do so by going to Settings > General > About > Modem Firmware. Jailbreak your device by preserving the BaseBand and than Install UltrasnOw or Gevey SIM.
How To Unlock iOS 5 On iPhone 4 / 3GS Using UltrasnOw :
Step 1 : Jailbreak your iOS 5 device. You can go through our RedsnOw tutorial. The RedsnOw tool support the preservation of the old baseband
Step 2: Once you have Jailbroken your device and straight head over to Cydia and go to the Manage Tab and than tap on Sources then tap on Edit and Add the following repository : http://repo666.ultrasn0w.com/
Step 3: Now just simply Install the Ultrasn0w 1.2.4 and thats it you are done with unlocking your iPhone.
Note: there’s a special “trick” that iPhone3GS owners with baseband 06.15 need for iOS5. During the new setup screens you see when you start iOS5 for the first time, you’ll be asked about Location Services. Be sure to select “Disable Location Services” when asked! Later on in the setup, you’ll have the chance to turn on Location Services again when asked if you want to use “Find my iPhone”. It’s fine to turn it back on at that point, if that’s your desire (or you can always go in and enable it in Settings.app).
For Gevey SIM :
The entire process for Gevey SIM users also remains pretty same. Users just have to follow all the above steps as mentioned and dial the emergency no. 112 and continuously switch the Airplane mode on or off till you get a cellular signal.
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