HTC HD2 T-Mobile User Manual - Page 238

238 Chapter 12 Camera and Multimedia Flash Mode Function When there is not enough environmental light, the camera flash turns on automatically when you take a photo, while the assist light turns on automatically when you capture a video and remains on until you stop capturing. The assist light turns on every time the camera focuses. The camera flash then turns on when you take a photo, while the assist light turns on when you capture a video and remains on until you stop capturing. The flash light is always off. Important Do not point the flash light near to or directly into people's eyes to avoid potential damage to their eyesight. Camera flash light doesn't turn on? Using the flash light eats up much battery power. To save battery power, the camera disables the flash light (even when you have set it to "auto" or "always on") when one of the following occurs: • You have an incoming call. If you have set the flash light to "always on", it turns back on after you answer and end the call. • Your phone's battery level reaches 20% or lower. Recharge the battery so that the camera can have enough battery power to use the flash light. • Cold weather may lower battery performance which affects the flash light. To make sure the camera has enough battery life to power up the flash light, 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.