how to delete contacts from smartphone
1 Open the Android Contacts app. 2  Locate the contact you wish to delete. 3  Press and hold your finger or stylus over the selected contact until a pop-up menu appears. 4  In the menu, select Delete.f you need to delete a contact from under your Groups (Gmail, Facebook, Unknown, and so on) just follow these steps: 1  Open the Android Contacts app and select the Groups heading. 2  Locate the contact you wish to remove from the appropriate group.