How do you reset your samsung gravity?

Answer 1

1. Simultaneously press and hold the Power key and the T key on the slide-out keyboard until the Android system recovery screen displays.
2. Press the Volume key down to scroll to wipe data / factory reset.
3. Press the Power key to select.
4. Press the Volume key down to select Yes - Wipe user data.
5. Press the Power key.
6. Press the Volume key down to scroll to Reboot system now.
7. Press the Power key to confirm.

Answer 2

Once you have unlocked your phone, however, although the SIM card will work and you can send/receive both texts and phone calls, you will find that when trying to send a picture message, you get an error that says, "Unknown subscriber", and the message will not send or download on your phone. Enter *#87927# Highlight Profile 2 Select Options Select Edit Enterthese settings, case sensitive. Save. Enter *#87667# Select MMS Profiles Select Profile settings Select Profile 2 Enter these settings, case sensitive: Save. To reset your WAP settings to the factory defaults, enter *2767*927# into your phone.