How Change Your Social Network Profile Photo On Nokia Lumia 920
When you set up your Facebook or Microsoft account on your Nokia Lumia 920, your profile photo from one of these social networking services becomes your contact card photo on your phone. If you change your photo on your phone, you can update your Facebook and Microsoft account profiles at the same time.
Tap People, and swipe to all.
At the top of your contacts list, tap your own contact card and your photo.
Tap your photo again, and in the Photos hub, tap a new photo.
Drag the photo around to adjust the cropping, and tap ok tick icon.
To set where to update your photo, tap Post to, tap or clear the check boxes, and tap ok tick icon.
Tap post icon.