Default Xperia Arc S camera

Good Morning. I have 2 Xperia Arc S.
I have a problem on my camera
1ST ARC S:
- Camera's focus mode doesn't work. It doesn't focus on anything. They told me to clean it but moving the cam to this phone. The phone got an error saying Camera not available.
2ND ARC S:
- Camera's autofocus works but when I turn to normal mode then select Landscape and Night Scene the camera turns blurdish at any angle. When going to Infinity in Video nor Photo mode it turns all blurdish how do I fix this? Thanks.