N915a unlock done easily

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’ (ignore it, if it’s not available).
4. Reboot phone.
Or use ‘Activate Diag’ function from ‘Repair’ tab.
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-N915A
Selected port: COM155 SAMSUNG Mobile USB Serial Port
Software version: 23.9

Reading phone info…
Reading IMEI… OK
IMEI: 012549301638237
Unlocking… OK
Reseting… OK
Unlock done

Done with Samsung Tool PRO v.23.9