Ya .. It has a lightning symbol. Tap that as per Shooting mode.!!

Hey guys! Check if you can see an icon that looks like a lightning while in camera mode. That's how it usually looks like.

As per I know, the flash option is depend upon the Brightness of the location detect by the Camera! So i thought we cant be change that, it blinks automatically :/ Else try using another options like Landscape, Snow, Sport & check !!