Use this customize_upgrade.xml for Vodafone Romania
<?xml version="1.0" encoding="utf-8"?>
<customization>
<info>
<model>W910</model>
<phone-name>W910</phone-name>
<cda-number>1201-6280</cda-number>
</info>
</customization>
And do not forget to start your phone after you put in customize_upgrade. Then do the upgrade.