Well, I got some mails and comments that Ultrasn0w is not working in UAE as they block as http://repo666.ultrasn0w.com is blocked in UAE, But I can’t leave my readers without unlocking their iPhones! So I found another Ultrasn0w 1.0-1 uploaded to SinfuliPhone repository. Here’s the step by step guide to unlock your iPhone in UAE,
Step 1: You should have a jailbroken iPhone 4, you can follow the step by step guide to Jailbreak iPhone 4 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://sinfuliphonerepo.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 1.0-1” and install this app, and it will automatically unlock your iPhone 4.