Designed to unlock operator locked Nokia phones - Simply slide the attachment under your normal SIM card - Ultra-thin film-like design?minimizes and sometimes avoids?the need to cut and trim SIM cards - Manufacturer?claims that this also works on some models?of the following?phones: . Alcatel BlackBerry Foma Huawei Iphone LG Lobster MDA MODEM Motorola Nokia Panasonic Sagem Samsung Sharp Siemens SonyEricsson SPV Toshiba Vodafone ZTE DOCOMO SOFTBANK . - Note : this is a DIY part and DX did not manufacture the product. Please research on Google to check if the unlocker is compatible with your phone.