Turning the fill flash on on the Apple iPhone Pro Max requires pointing the camera against a dark area (or against your shirt) and then turning on the night mode (round circle with lines through it) on the bottom of the screen. Controls pop up and then you touch the flash symbol, which brings up the flash choices of flash auto, on, or off. Touch on, and you have forced flash, or fill flash until you turn the camera mode off (swipe up to close the camera). In sunlight, even in the shade, the night mode symbol is hidden and this technique cannot be used. This is a problem that Apple needs to fix ASAP. Joe