title_body: Kobo by FNAC does not show covers when sleeping
upvoted_answer: It turns out it's a factory setting for the FNAC versions. It can be changed by connecting it to your computer and editing a file inside a hidden folder: .kobo/affiliate.conf.
  You should change it from affiliate=fnac to affiliate=Kobo.
  
  This was found at a MobileRead Forum post, and I thought it should be here for making it easier to be found.