I9505 AT%T Lock unlock via Z3x
First goto recovery by pressing volume up + home + power button at Enable CP Loogging,then follow this proccedure
1. Phone must be powered on.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Type *#9090# and choose USB (or 'DM/DUN over HSIC').
4. Reboot phone.
5. Connect USB cable, install drivers if needed.
6. Select Samsung diagnostic port in port settings.
7. Press 'Unlock' button for direct unlock.
First goto recovery by pressing volume up + home + power button at Enable CP Loogging,then follow this proccedure
1. Phone must be powered on.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Type *#9090# and choose USB (or 'DM/DUN over HSIC').
4. Reboot phone.
5. Connect USB cable, install drivers if needed.
6. Select Samsung diagnostic port in port settings.
7. Press 'Unlock' button for direct unlock.