You find a getting started how too on follow link:
As far as I know, some GL devices have a TF card slot, but no GL device that I know of comes with a TF card.
It can use for some thing. Ignore the TF card slot on your first days of using of the router. P.e. I didnt ever used the TF card slot on the router.
It can be the slot can be used for p.e the follow:
- use for files which can shared by the router on your lan
- can use by the advanced admin menu for advance your ROM space for advanced useing, if you like to use some thing which are not standard for typical user or beginner
- It can be ( im not really shure about this point) for do some form of firmware update or restore, which are not standard and not the preferred way for typical end user or beginner
