To change discoverable on your iPhone, you have to follow the below-listed steps. Step 1: Open your iPhone and tap on “Settings” from the home screen. Step 2: Scroll down to “General” and tap on it. Step 3: Tap on the “About” tab in your General settings. Step 4: Click on “Name” on the top of About settings and edit the name. Step 5: Change the name and tap “Done”.