Mobile Data on/off *ping* home screen

[RogerSpeedBump]

Can someone tell me why is it that when you press the 'Mobile Data' button, in quick settings, the phone flicks back to the home screen? #annoying

[_alexdon_]

That is a good question but we cannot answer,that is how it works. You need to contact sony:

http://www.sonymobile.com/global-en/support/contact-us/