Some wireless providers lock their phones, meaning that their phones have been programmed to only work with their SIM cards. Currently we offer this service on the following devices: HTC, iPhone, Nokia Lumia, Samsung Galaxy & Sony Xperia. We currently unlock from the following networks: EE, 02, Tesco, Vodafone, Orange, T Mobile, Virgin & 3. Please ensure you fill in your IMEI number in the special instructions section when processing the order. If your unsure on how to find the IMEI number for your device, type *#06# on your phone or please contact the manufacturer or call us on (01254)669237.