B) The unlock is done OTA
C) So far, no one has figured it out
D) You can activate the phone abroad using some clever tricks in DFS cdma tool, but this does nothing for GSM/unlock.
Also where did you hear it was stored in nv ram? Not discrediting you, but I've done FULL backups of nv items up to 65535 and restored them to another phone without any success. Unless it's in one of the handful of locked nv items...
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