Try this: go to Settings > Accessibility > Flash notification. If the box is unchecked, check it and then uncheck it. If it is checked, uncheck it, You may have to restart the phone to get it to 'take'.
Try this: go to Settings > Accessibility > Flash notification. If the box is unchecked, check it and then uncheck it. If it is checked, uncheck it, You may have to restart the phone to get it to 'take'.