How to Enable MMS on an Unlocked AT&T Phone
- 1). Tap the "Messages" icon on the home screen of your iPhone.
- 2). Select the MMS text message to open an MMS message sent to your iPhone. Tap the icon located within the MMS message to open the multimedia component of the text message.
- 3). Tap the new message icon to send an MMS text message from your iPhone. Enter the cellular phone number you want to send the text message to in the "To" field. Tap the camera icon and select the multimedia content you want to attach to your MMS text message. Tap the "Send" button to send the MMS message from your iPhone.