Ultrasn0w 0.8 for iPhone 3GS users is eventually released by the infamous Dev-Team, with this iPhone 3GS users has ability to unlock iPhone 3GS to use it with any carrier SIM. So if you’re interested to unlock iPhone 3GS running iPhone OS firmware 3.0:
Step 1: Download iTunes 8.2.
Step 2: Launch iTunes. And then right clicking on iPhone name in the left side sidebar to backup your phone’s data and clik on backup
Step 3: Start redsn0w in order to jailbreaking your iPhone 3GS using redsn0w but firstly close iTunes. And follow the following steps to use redsn0w to jailbreak iPhone 3GS.
Step 4: Once you are done with the jailbreak, you can now unlock your iPhone 3GS running jailbroken firmware 3.0 by using ultrasn0w 0.8. To do this:
* Start “Cydia” on your iPhone 3GS.
* Touch on “Manage” tab on the bottom.
* Now touch on “Sources” as seen in the screenshot below:
* Touch on “Edit” and then on “Add”. You will be prompted to enter a url source as seen in the screenshot below. Type “http://repo666.ultrasn0w.com” and touch on “Add Source”.
* Cydia will now automatically update your sources by following a series of automated steps.
* After installation is completed. Search for “ultrasn0w” in Cydia and install this application (T-Mobile users should disable 3G before installing ultrasn0w). This app will automatically unlock your iPhone 3GS so that you can use it with any carrier.
Step 5: Now simply restart your iPhone 3GS. Voila! You are now running a fully unlocked and jailbroken iPhone firmware 3.0 on your iPhone 3GS.
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