Phones that are sold by an operator doesn't always mean it's going to be chokka full of branding - it often now just means that it has the correct settings to be fully compatible with that network.
There are many settings on phones these days that vary between networks, and you can easily experience issues. I can list a number of such issues using a 2d S3 on VF which were all solved by moving to the Vodafone firmware.


