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I have a Vodafone R218 Mifi with Vodafone sim. We havent used it for some time and now when I try to connect, I am asked for the unlock code. Is this NUC or PUK related or is this a device specific code? I cant remember using one before. Many thanks.
edited to add: If you are looking for PAYG, the link is here: https://freesim.vodafone.co.uk/check-out-data