Main content
07/04/2012
What do you have to do to get a phone signal? Click finds out why your mobile cannot always connect to the network. Plus, the self-destructing USB stick.
Last on
Sun 8 Apr 201214:30GMT
BBC News UK
What do you have to do to get a phone signal? Click finds out why your mobile cannot always connect to the network. Plus, the self-destructing USB stick.
