Solved! How i can get back huawei p9 mobile camera icon

Solution
Well it could have either been deleted from the home screen or combined with another app in an app folder. So first check the apps that are on the screen and make sure they are not in a folder now together with the camera icon. If the camera icon is indeed in a folder with other icons then all you need to do is 'tap' and 'hold' the camera icon, drag back to the home screen and drop it there.

Should it turn out that the camera icon is not in with any other icons, then 'tap' and 'hold' any part of the home screen that is empty. This should load options for widgets, icons, etc. Locate the camera icon and again 'tap', 'hold' and drag it back to the screen where you want it.
Well it could have either been deleted from the home screen or combined with another app in an app folder. So first check the apps that are on the screen and make sure they are not in a folder now together with the camera icon. If the camera icon is indeed in a folder with other icons then all you need to do is 'tap' and 'hold' the camera icon, drag back to the home screen and drop it there.

Should it turn out that the camera icon is not in with any other icons, then 'tap' and 'hold' any part of the home screen that is empty. This should load options for widgets, icons, etc. Locate the camera icon and again 'tap', 'hold' and drag it back to the screen where you want it.
 
Solution