UNLOCK INSTRUCTIONS:
Micro-USB cable:
1. Phone must be powered on.
2. Type *#0808# and select ‘DM+MODEM+ADB’.
3. Type *#9090# and choose ‘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: SM-A300FU
Selected port: COM5 SAMSUNG Mobile USB Serial Port
Software version: 21.9
Reading phone info…
Reading IMEI… OK
IMEI: 3596550651—–
Reading security… new type
Bypassing… OK
Unlocking… OK
Reseting… OK
Unlock done
Done with Samsung Tool PRO v.21.9