s3 android version 4.4.4 from at&t
 

how to unlock s3 i747 from at&t .android version 4.4.4.
can i downgrade to 4.1:confused:

bro i am unlook this phone bey Z3X Box ver 4.1 and 4.3
Note = click
new security

:). Read info

micro-uart cable:
1. Phone must be powered on.
2. Type *#7284# and choose Modem for UART and PDA for USB options.
3. Press "Quallcomm USB settings" and select "DM+MODEM+ADB".
4. Connect the phone to UART port.
5. Choose correct COM port in port settings
6. Press "Read info" button.
micro-USB cable:
1. Phone must be powered on.
2. Type *#7284# and choose Modem for USB and PDA for UART options.
3. Press "Quallcomm USB settings" and select "DM+MODEM+ADB".
4. Reboot phone.
5. Connect USB cable, install drivers.
6. Select diagnostic port in port settings.
7. Press "Read info" button.

:) Unlocking

micro-uart cable:
1. Phone must be powered on.
2. Type *#7284# and choose Modem for UART and PDA for USB options.
3. Press "Quallcomm USB settings" and select "DM+MODEM+ADB".
4. Connect the phone to UART port.
5. Choose correct COM port in port settings
6. Press "Unlock" button.
micro-USB cable:
1. Phone must be powered on.
2. Type *#7284# and choose Modem for USB and PDA for UART options.
3. Press "Quallcomm USB settings" and select "DM+MODEM+ADB".
4. Reboot phone.
5. Connect USB cable, install drivers.
6. Select diagnostic port in port settings.
7. Press "Unlock" button.

yes i try *#7284# and *#8080# and #9090# but no option coming:confused:

@neetika99
this is a new security phone and not supported yet with Z3x