With the introduction of iPhone
6s and 6s Plus and iPhone 7 and 7 Plus, Apple included a selfie flash feature
to take a selfie picture even in low light condition. Selfie is the neediest
thing so taking focus on the low light Apple built the device flash so that you
can take a nice selfie pictures. 

How to Turn On & Off Selfie Flash on iPhone Open the Camera app from the Homescreen, Lockscreen or Control Center as you like. Or If you have a 3D enabled iPhones you can directly go to selfie mode by 3D Touching the Camera app.

If you want front flash and want to take Selfie Photo and find
yourself in a low-light area, you can turn on the flash and snap a photo in a
beautiful way. Along with that, you can also set your Selfie front flash on iPhone to auto so
that the camera decides automatically according to the condition of light. But sometimes
you don’t get the actual pictures when camera is in auto flash so turning auto
setting is not good as always. You can turn off Selfie flash on and off on your
iPhone anytime you want.
Here’s how to turn flash on
and off while taking selfie on your iPhone.
How to Turn On & Off
Selfie Flash on iPhone
  • Open the Camera app from the
    Homescreen, Lockscreen or Control Center as you like.
  • Or If you have a 3D enabled
    iPhones like iPhone 6S and above, you can directly go to selfie mode by 3D
    Touching the Camera app.
  • Now tap on the camera icon in
    the lower right corner to turn on the front-facing camera in iOS 10 or tap on
    the camera icon in the top right corner to turn front facing camera or selfie
    camera if you are on iOS 9.
  • Tap the lightning bolt icon
    in the upper left corner.
  • After tapping, it will shows
    up three option with Auto, On, or Off.
  • Tap On to turn On flash on
    Selfie & tap Off to turn off selfie flash.
  • Tap Auto, to enable turn
    on/off automatically when the selfie flash is needed.

Note: If you are using non 3D
enabled iOD devices and is jailbroken then simply follow this to
enable the Selfie Flash Feature on lower devices.