3G modem in a laptop

We really liked the idea of the built-in laptop 3G-modem . Not all models are equipped with this option. To do this, you need to replace the usual Wi-Fi card for a smaller version, solder connector MiniCard, if it's not on the board, set the cellular modem based MiniCard (easy to find on eBay) and add a connector for SIM-cards. To install the antenna will have to sacrifice a webcam.