Does anyone knows hot to use the auto focus feature on my Samsung Star or Tocco lite?

Your phone’s camera does not have a manual focus mode as far as I can tell form the specifications listed by Samsung.

What this means is that the camera is already using auto focus and the speed with which it takes photos and their quality is not able to be improved, unfortunately.

There are a few things you can do to improve the photos however: make sure you take them in a well lit environment and place the subject you want in focus as a dominant feature of the photo to aid the auto-focus.

Another possibility is that you’ve set a time-delay on photo taking, turn any delay to “off”.