Tap the Camera key.

To zoom in or out:
Drag two fingers together or apart to zoom in or out.

To turn on the flash:
Tap the flash icon.

To select scene mode:
Tap the dots in the bottom right corner of the display.

Tap photo settings....

Tap the field below Scenes.

Tap Auto (default) or the required setting.

Tap the Return key.

Point the camera lens at the required object and tap the Camera key to take a picture.

Tap the Home key to return to standby mode.