Flashing/debranding my C905a

[n-arov]

Did you used this customize_upgrade:

<?xml version="1.0" encoding="utf-8"?>
<customization>
  <info>
    <cda-number>1209-4760</cda-number>
  </info>
</customization>

?
Did you switched on then off the phone after uploading it ?

I used 1209-4778 for America...
... and 1209-4774 for Western Europe.

I did turn my phone on (and later off, before updating) after uploading the first CDA xml file (the American one), just to check that it still works alright. I don't remember doing the same for the European one.