Another problem of the Huawei P9 is that reported by many users of the terminal when it comes to using video recording on the smartphone; and is that when it begins to capture the scene, the auto-focus of the camera stops working properly.
While this is a problem and has an easy solution, not everyone will be happy with it. It seems that this is a problem of the camera application in its version 4.1.1 and that until it is not updated can not be corrected.
Now, we can always install another camera application; like the Google Camera, although this program is not as attractive, especially visually, as the smartphone native.