Only thing I would add is to Question 2.
No antenna is installed so you would have to install one. You have 3 options.
1. You can purchase antennas that just sit around the card above or below it so you don't have to route the antenna anyway. Some people say these are all right for signal, I dunno.
2. The wifi card has 2 antennas plugged into it. You can use 1 of these antennas and extend it to connect to the WWAN card. Means you don't have to route a new antenna as it is all ready installed around the screen.
3. Install an antenna and route it round the screen or somewhere.
No antenna is installed so you would have to install one. You have 3 options.
1. You can purchase antennas that just sit around the card above or below it so you don't have to route the antenna anyway. Some people say these are all right for signal, I dunno.
2. The wifi card has 2 antennas plugged into it. You can use 1 of these antennas and extend it to connect to the WWAN card. Means you don't have to route a new antenna as it is all ready installed around the screen.
3. Install an antenna and route it round the screen or somewhere.