I have never heard of this type failure.
For any strange error, Sony usually recommends that you reset the camera to factory specifications.
Sony usually calls it "Initialize".

I can find only one reference to Initialize in the W220 User Manual.
That is on page 23.

The description shown does not say "set to factory specifications"
I suggest you follow the instuctions and see what the camera tells you when you attempt to do an Initialize.

..