Let me try.
Here is something I got from a google search:
	Quote:
	
	
		| Images might display sideways or upside down after uploading them to your website thanks to the picture being taken on a phone or camera that is  in landscape mode. While most image viewers will automatically rotate  the image to the correct orientation when viewing it, most internet browsers do not. | 
	
 
	Quote:
	
	
		| Basically, the camera's sensor doesn't realize when you rotate the phone to take a picture. ... The reason why the images flip  when you email them or transfer them to certain operating systems is  because not all environments acknowledge EXIF data. This means that the  orientation tags aren't being acknowledged. |