White iphone 4 (three network) swap for black iphone 4 or samsung galaxy s2 -

Hi, I got my iphone 4 in white from a friend, but dislike its color and would like to swap it for a black one or a samsung galaxy s2. In perfect condition (with screen protector) and locked to three network. Comes with box and charger. Product Identifiers Brand Samsung Family Line Samsung Galaxy S III Model GT-I9300 SIM Lock T-Mobile MPN GT-I9300MBDTMU EAN 5025743759850 Type Smartphone Key Features Storage Capacity 16 GB Colour Pebble Blue Network Technology GSM Style Bar Operating System Android Camera 8 Megapixel Memory Supported Flash Memory Cards Micro SD, Micro SDHC Battery Battery Capacity 2100 mAh Display Display Technology HD Super AMOLED Diagonal Screen Size 4.8 in. Other Features Touch Screen Yes Bluetooth Yes Digital Camera Yes GPS Yes QWERTY Physical Keyboard No Email Access Yes Internet Browser Yes ***CASH WAITING*** We will buy iphone 4 or 4s NEW or USED, or NO SERVICE. will pay up to 350 depending on make model and condition.NEW, USED or NO SERVICE ..Genuine add no messing about.. WE ARE SERIOUS BUYERS!!! INSTANT CASH!!!!Simply TEXT me, Network