Since iPhone 4, Apple equips smartphone led flash. Special LED indicator that is designed to improve shooting in low light, located on the rear panel of the device, near the camera. Besides the basic functions, flash and solves other problems, including notification of calls and SMS messages, and is also used as a flashlight.
In recent versions of the iPhone, Apple has been used as a dual True Tone flash: one of the diodes carries a alternative shade to keep the white balance at the proper level. When flash is in flashlight mode, is enabled by default only one of the LEDs. Using a simple trick, you can force iOS to include both the flash to achieve a brighter glow. About how to do later in our tutorial.
Step 1: Swipe up to open control – standard interface latest versions of iOS. 
Step 2: use the button To activate the Flashlight mode to turn on the LED illumination.
Step 3: the control will activate the Camera. On the screen you should see a native app for shooting, the led will turn off.
Step 4: Now press the Home button to close the Camera. Immediately start the control center and press the Flashlight button. At this time, iOS will include both the LEDs and the flash will be brighter.
