MASTER YOUR DEVICE - HTC

50 Camera
Camera flash doesn’t turn on?
The camera flash uses much battery power. To save battery power, the
camera disables it (even when it’s set on) when one of the following
occurs:
You have an incoming call
The camera flash will be disabled temporarily when you have an
incoming call. After the call ends, you’ll be able to use it again.
If you have set the flash to Auto flash or Flash on in photo mode or
Light on in video mode, it turns back on after you answer and end the
call.
Your phone’s battery level reaches 15% or lower
Recharge the battery so that the camera can have enough battery
power to use the flash.
Cold weather may lower battery performance which
affects the flash
To make sure the camera has enough battery life to power up the flash,
keep your phone warm. When not in use, put the phone inside your
jacket to keep it warm, and try to avoid sudden temperature changes
that may affect battery performance.