If you get on your iPhone 6 a new call or a new SMS message and you notice that your photo LED flashes, then you have the option "LED flash for alerts" enabled. This option in iOS helps you to identify new notifications quickly by the flash light, especially when the sound is turned off or you have impairments in hearing. However in most cases this LED flash alert is not needed and which is why we show you how you can disable it on the iPhone 6. Proceed as follows in iOS:
Open the settings and then: General --> Accessibility --> Section "Hearing"
You will now see the option "LED flash for alerts". Slide the controller to "Off" to disbale this option on your iPhone 6.
You will from now on not receive any flash notification by the Photo light on your iPhone 6 now.