En la página de
my Xperia viene esto:
"Getting started with my Xperia
Download and activate my Xperia
Install the my Xperia application on your device. Find and tap Settings > About phone > Software update > New apps > My Xperia and tap the install icon.
Activate my Xperia on your device. Find and tap Settings > Xperia > My Xperia > Activate.
An email is sent to your Google account to confirm that your my Xperia account is activated."
Es decir, para que se puede tiene que salirte en actualizaciones del sistema.
Pero vamos, que a mi tampoco me sale nada...
