After releasing the new iOS 4.1, we showed you yesterday how to jailbreak your iPhone 3GS running iOS 4.1 using PwnageTool method, today I will show you how to unlock your iPhone 3GS on iOS 4.1 with ultrasn0w to use it with any carrier.
STEP 1: You should have a jailbroken iPhone 3GS on iOS 4.1 using PwnageTool ONLY, you can follow the step by step guide to jailbreak iPhone 3GS on iOS 4.1 posted here.
STEP 2: After Jailbreaking, Navigate to Cydia Source by Going to Cydia –> Manage –> Sources.
STEP 3: Touch on “Edit” and then on “Add”. Type “http://repo666.ultrasn0w.com” then hit “Add Source”. Ultrasn0w will be added to your Cydia Source lists.
STEP 4: After you install Ultrasn0w in your Cydia sources list, Search for “ultrasn0w 1.1-1” and install this app, and it will automatically unlock your iPhone 3GS on iOS 4.1.
STEP 5: Restart you iPhone, Done.
Congratulations, Now you have a Jailbroken and Unlocked iPhone 3GS on iOS 4.1 , you can now use your iPhone 3G with any carrier.
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