Actually there is no need to Enter an "Unlock Code" on Apple iPhone, all the process is done via iTunes once you receive from us the confirmation of unlock.
In the unlikely event that your iPhone is not unlocked, please restore your device following the official guideline from Apple - Click Here!
Starting iOS7 Update: How does Activation Lock work?
When you enable Find My iPhone on your iPhone, iPad, or iPod touch running iOS 7, the Apple ID and password you use for iCloud is securely stored on Apple’s activation servers and linked to your device. From that point on, your password will be required before anyone can turn off Find My iPhone on your device, erase your device, or reactivate and use your device.
Activation Lock is enabled automatically when you turn on Find My iPhone in iOS 7, or when you upgrade to iOS 7 from a previous version of iOS that has Find My iPhone already turned on.
To turn on Find My iPhone on your device:
Prior to unlocking a phone, make sure the previous owner of the unit has turned off Find My Phone and erased all contents & settings.
For more info please refer to this link : http://support.apple.com/kb/HT5818
PLEASE NOTE THAT WE WILL NOT BE ENTERTAINING ANY REQUESTS FOR REFUNDS OR HELP ON THIS ISSUE - YOU MUST ENSURE THE ABOVE FEATURE IS TURNED OFF BEFORE UPGRADING TO IOS7 AND UNLOCKING YOUR PHONE - OR CONTACT THE ORIGINAL OWNER OF THE PHONE TO AQUIRE THIS INFO.
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