UNLOCK INSTRUCTIONS:
Micro-USB cable:
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.
Operation: Unlock
Selected model: SGH-T999
Selected port: COM23 SAMSUNG Mobile USB Serial Port
Software version: 34.1
Reading phone info...
Reading IMEI... OK
IMEI: 353024059138043
Unlocking... OK
Reseting... OK
Unlock done
DONE..
Micro-USB cable:
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.
Operation: Unlock
Selected model: SGH-T999
Selected port: COM23 SAMSUNG Mobile USB Serial Port
Software version: 34.1
Reading phone info...
Reading IMEI... OK
IMEI: 353024059138043
Unlocking... OK
Reseting... OK
Unlock done
DONE..