@Mitch Hi, sorry for the delay. For your answer I would ask the OP to tell you what lspci, lspci -vv or lshw -c network show, because depending on the 1520 model it has 2 or 3 different wireless cards. It has 2 intel and one broadcom. This will quickly help you narrow down which model the OP has and which method to use to install them. You can also guide them to my guide about
askubuntu.com/questions/55868 in the case it has a broadcom and the model is convered there.