Here are the steps:
1. Make sure you will install a new or fully charged battery/batteries into your camera.Pls. use lithium batteries Ni-Mh or rechargeable Batteries (2000 M.Amp or higher).
2. Clean the battery contacts.
a. Remove the battery/batteries and the memory card from your camera, then wipe the battery contacts with a soft, clean cloth.
b. Reinstall the battery/batteries into your camera
3. Without the memory card,turn on your camera.