Save Settings enables storing your search preferences for future searches.
When you make a web search on your mobile device, you see a list of several search results. The Search Settings section at the end of the list shows, for example, Adapt pages for mobile browser with which you can choose to view html web pages as they are presented to a PC's browser rather than in a version adapted by Yahoo! to fit on your mobile device.
If you choose Show images in adapted pages and remove the check from the box near it, the adapted version of the page does not show any images, speeding the display of the text. This setting only applies if the box for Adapt pages for mobile browser is checked.
Clicking Save Settings puts any changes to the settings into effect.