[andyg]

[When I insert the usb it asks for a license number. Where do I get that from?]

Ahhhh. This means that your car is expecting an update to be made using DVD discs. The previous system using discs required purchase of a one-time code specific to your car's VIN from an approved Volvo dealer. It cost about £130 per update as I recall. About four years ago Volvo went to "free for life" updates, using maps downloaded from their website onto a USB stick. (More recent cars can even get it direct on the internet using WiFi I believe.)

To use the USB method your 2012 will need an "Infotainment Head Unit" software update from a Volvo dealer. It costs about £60. My 2013 car was compatible with that update and it works fine. Not sure about 2012 though. Your best bet is to ring your nearest Volvo dealer, quote your VIN and ask them if the car can take the IHU update. Make sure they understand it is specifically to enable map updates using a USB stick. Hope that helps.