Slideshow
1.While viewing photos, slide your finger on the screen to open the photo controls bar.
2.Press the 
button.
3.Press the “Slideshow” button. The slideshow option menu will appear.
4.Choose the type of slideshow you would like to view your pictures with.
4.Tap the picture to close the slideshow option menu and return to the photo settings menu.
5.If you would like to change the slideshow interval time, press “Slide interval” and choose a interval option.
6.Quickpress the “Power“ button to start or pause the slideshow.