Galaxy S5 Camera failed & didn't get the Lollipop update, why?

[AC Question]

Galaxy S5 Camera Failed & didn't get the lollipop update

Hi, I have Galaxy S5 SM-G900F after 2 weeks of using the phone I got the camera failed and I do Hard Rest and work for sometimes and again after hours gives me the same error "Camera Failed" and I can't receive the lollipop update why ??