When I try to charge my camera it will not charge.

The LCD Screen on my Samsung DV300F will not turn on. I can not see anything on the LCD screen.

Make sure that you have the battery inserted correctly. If it still does not work then either the battery or the charger need to be replaced. Here is a link to the DV300F Troubleshooting page that may help you. Samsung DV300F Troubleshooting

The area around the lens may be dirty, and that might be preventing the lens from moving. If you remove the dirt from around the camera's cannon you might be able to adjust the lens. Another possibility is that the lens may be broken. Here is a link to a DV300F troubleshooting page that can lead you to a guild for the part's replacement. Samsung DV300F Troubleshooting