Credits to Owl74 on XDA-Developers
Dial the following keys *#197328640#
Main Menu > [1] UMTS > [1] Debug Screen > [8] Phone Control > [6] Network Lock > Options [3]Perso SHA256 OFF > (after choosing this option, wait about 30 seconds, then go back one step by pressing the Menu button then select Back, now you are in [6] Network Lock then choose [4] NW Lock NV Data INITIALLIZ
Wait for a minute then reboot your phone.
If you have difficulty then
- PLUG IN THE FOREIGN SIM CSED FIRST
- BOOT up the phone with the different sim card, then it will ask for unlock code. CLICK DISMISS
- Then perform the 6 step process in post above
- be sure to WAIT EXACTLY where it says wait 30 sec, and wait 1 min then reboot
Thanks for the info. Although I suspect most OzBargainers would vote "Dont care" as most would have bought their Galaxy phone unlocked already from grey importers.