you have to get the bluetooth chip, either from dell directly or from an online supplier and then install it into the laptop. you can do it yourself if you are a little savvy with working with laptops or go to a computer shop and have them install for you. on the D600 it was an option when the laptop was purchased whether or not to have the BT installed. most places did not opt for the expensive upgrade that it was at that time. I got the chip for my laptop and installed it myself. took about 5 mins to install and it was only $34 dollars online.