Actually, it is an utterly unhelpful site. What drivers are needed is as clear as mud. What to do, if it exists, does not open from the PDF. Shows an empty file despite its size.

The only thing that can be said for the site is that some of the drivers do help. For example, you need to run both the WWAN and Chipset drivers to get the 3G modem and hardware Windows button to work.

In relation to the 3G just running the file is not enough. You have to return to Device Manager (why does W8 not find that from Start?) and go through installs for 4 more devices without the WWAN driver.

Samsung should be doing a lot more to assist with all of this.