How to Enable Facetime Over 3G on iPhone 4 iOS 5 / 5.0.1

How to Enable Facetime over 3G on iPhone 4 running iOS 5 / 5.0.1 ?  One of the flaw of Facetime feature was that you can only Call over Wi-Fi. iPhone 4 users wasn't able to call over 3G. But thanks to the iPhone Dev team who has found a bug in iOS 5.0.1 and so were able to activate Facetime over 3G for iPhone 4. Follow the steps carefully to activate Facetime over 3G on iPhone 4 running iOS 5.0.1

Requirements:
  • A jailbroken iPhone 4.
  • File Manager for iPhone, iFile (Download from Cydia)
Guide:
1. The very step is to jailbreak your iPhone 4 on iOS 5.0.1. you can follow our step by step guide to jailbreak your iPhone 4 on iOS 5.0.1
2. After successfully jailbreaking, Open up Cydia and search for the iFile. Download and install it on your device.
3. In iFile, Navigate to the following folder,
/System/Library/CoreServices/SpringBoard.app/
4. Open the file "N90AP.plist"
5. When the file is opened find the text
<key>capabilities</key> <dict>
Below this line, write down the
<key>3Gevenice</key> <true/>
6. After writing the code, Save the file and close it. But be sure that you have written the code carefully.
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