Easy Unlock Samsung U600 for free with original usb cable.
First download lucifer 1.03 by OTMAN-GSM
Power the phone , connect to PC ,select right port COM in soft
Start software and dont trie to read the codes or unlock !!!
In the Phone Reset select "Stack reset" and push on "SET"
Wait until all ok then disconnect phone , pull out battery and insert .
PHONE UNLOCKED
http://mogoshare.com/953572