Samsung Galaxy S4 Customer Consultant Manual page 48

Q98: Camera > Flash not supported in "Auto night detection" mode
Part 2 >
Q : When I take a photo with "Auto night detection" mode, I can not use the flash functions.
What's the problem?
A : Sorry for your inconvenience.
If you take a picture with Auto night detection mode, flash will not work .
"Auto night detection" mode sets the device to automatically detect darker conditions
and adjust the brightness of the photo.
So you can take sharp photos in dark areas without a flash.
1. Tap
2. Tap
It's a concept of GalaxyS4 and normal.
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