unlockcode4u.com - I got my unlock code from unlockcode4u.com/en/unlock-Samsung/Galaxy-S5-(SV)
To enter the unlock code:
1. Power on your phone with a non accepted SIM card.
2. Once powered on, you will be asked for a Network Unlock Code
3. Enter the unlock code provided by us and
4. Your phone is now unlocked. That's it! Thumps up for UnlockCode4U.com!