I have a Nokia 6288 locked to Vodafone UK.. Trying to get a Vodafone Spain sim to work in it. I have the unlocking code from Vodafone, but it says 'cannot undo restriction'.. I have purchased a DKU-5 cable, downloaded all the drivers etc. and got nowhere... Does anybody know if the DKU-5 will actually work with this model ? HELP please.. !!!!