S520 User's Manual
Page 140
... with File contains no image COOLPIX S520. This image cannot be displayed - Lens error Q Lens error. Lens cover error Q Finger or other device. N Date and time are not set All images are hidden. If error persists, contact retailer or Nikonauthorized service representative. Resume operation after turning camera off and prevents lens cover from remove obstruction. Turn camera off and then on again...
... with File contains no image COOLPIX S520. This image cannot be displayed - Lens error Q Lens error. Lens cover error Q Finger or other device. N Date and time are not set All images are hidden. If error persists, contact retailer or Nikonauthorized service representative. Resume operation after turning camera off and prevents lens cover from remove obstruction. Turn camera off and then on again...