I’m not an expert but, firstly, I think the unlock (*#) codes are for GSM phones, not TDMA phones, which the 3360 is? Secondly, assuming I’ve got the right model, the 3360 can't be unlocked, as it doesn't use a simcard. As far as I know, you can take it to a UK provider and they'll register it for you onto their system. I suspect that’s done via PC and data cable.