There are dummies with mobile phones - and then there's ... me!
Have just switched from an LG Viewty to a Nokia Lumia 800 ... both with Vodafone.
Have inserted my new SIM card in the Lumia in the only way it accepts it ... and have charged it for over 24hrs.
I can turn it on
(wow!) and look at the pretty colours and things that slide about from one side to the other and up and down. BUT

... can I do anything else with it? No!
I cannot connect to the web and neither can I make calls ... I don't know whether I
(obviously?) have a new nuraber because there was no notification of a new nuraber with the new phone and everything I CAN access when I turn it on tells me there's 'no connection' or 'no service', so I can't ring my old mobile to find out. And neither does my old LG SIM fit my new Lumia.
Frustration isn't the word for it ... and it probably won't be helped when someone on here points out something really stupid that will make me realise I'm even more of a dummy than I thought I was before!
Nevertheless ...... ?????????????