its right on top of the battery. u will see a slot on the top right side. u have to have your phone side ways to see it. its easy and i have a web site if u dont understand what i mean. i have the same phone.then u use a usb cable and connect to the copmuter and it should reconise the phone.http://support.t-mobile.com/knowbase/root/public/tm51527.htm?A2L.SERVICE=How%20To.