I recently bought a ‘Samba’ SIM card for £1. Samba is mobile internet provider that gives you free internet access in exchange for watching adverts online It arrived today and I wanted to test it out, I knew my laptop had a SIM card slot but only now did I realise I had no idea where it was. The green part in the image is the SIM card. To access it the battery needs removing then a little plastic tab lifting up.
If you didn’t buy the laptop with a 3g WAN card, you’ll still need to do that. You’ll know if you have one or not as if not there will be a space next to the standard WiFi card where you can insert a PCI-e 3g card.