methods to unlock system
1. Telephone have to be powered on.
2. Sort *#0808# and choose ‘DM+MODEM+ADB’.
three. Sort *#9090# and select USB (or ‘DM/DUN over HSIC’).
put telephone into restoration “energy+quantity up+house button”
allow cp logging which is about sixth choice down
four. Reboot telephone.
5. Join USB cable, set up drivers if wanted.
6. Choose Samsung diagnostic port in port settings.
7. Press ‘Unlock’ button for direct unlock.
Chosen mannequin: GT-I9505
Chosen port: COM80 SAMSUNG Cellular USB Serial Port
Software program model: 21.eight
Studying telephone information…
Studying IMEI… OK
Studying safety… new sort
Done with Samsung Software PRO v.21.eight
i9505 unlock 5 0 1