Ambient Light sensor not working

[L4Leonard]

So, somehow my ambient light sensor is no longer working. This results in my screen not dimming while on a call, and my chin touching the display, resulting in the call being muted, put on speaker or hung- up.

Does anyone here have any tip for how to fix this issue?

iPhone 4, running iOS 7 (Beta 3)

 

[Tyler23]

So, somehow my ambient light sensor is no longer working. This results in my screen not dimming while on a call, and my chin touching the display, resulting in the call being muted, put on speaker or hung- up.

Does anyone here have any tip for how to fix this issue?

iPhone 4, running iOS 7 (Beta 3)

This is an iOS 7 beta issue. A few users have reported it.

Try a hard reset. If that doesn't work you may have to restore, or downgrade to iOS 6.