IPHONE 4S 16GB BLACK BRAND NEW.
UPGRADE FROM THE CARPHONE WAREHOUSE NEVER TURNED ON BOX ONLY OPENED TO CHECK THE CONTENTS.
HANDSET VIA ORANGE BUT WILL WORK ON ANY NETWORK.
WHAT MOBILE QUOTE,
"“”Please be aware your iPhone 4S will lock to the network of the first SIM card that’s inserted into it. If you’re changing networks, we strongly advise you to not to insert your old SIM into your new iPhone 4S. If you do this, you’ll need to contact Apple who will be able to help.”
CHECK OUT THE FOLLOWING LINK FOR CONFIRMATION,
http://www.whatmobile.net/2011/10/iphone-4s-sim-free-lock-at-carphone-warehouse-needs-jailbreak/