FoM
Friend of mine who worked for a mobile phone company once tried to explain some Tech stuff to me. He indicated that lock codes can and are used to lock out certain features of phones and are not just associated with SIMS's I'm not Tech Savy enough about that side of mobile phones so cannot comment on the validity of his advice. Believe it or not I've never owned a 'locked' phone always have, always will have unlocked devices.
I think this locked to network nonsense should be legally outlawed seems to fly in the face of an open competitive market. Buy your next phone abroad or from the web from a supplier who sells unlocked devices.
Wouldn't do you any harm to try it so long as it doesn't sour your relationship with your provider
