Instructions
Power on without SIM
Type in #7465625*638*Unlock code# (8 digit unlock code*)
Device should say: "Network Lock Deactivated"
Phone may automatically reboot
Read more: "How To Unlock Samsung SGH-S8300 | Mobileslate" - http://www.mobileslate.com/blog/2009/04/09/how-to-unlock-samsung-sgh-s8300-ultra-touch/#ixzz0GlR1297a&A
How To Unlock Samsung SGH-S8300 Ultra Touch,Subsidy code for SGH-s8300