Hi Kumaryu,
Many thanks for this advice. As you seem very savvy, I wonder if you could help with some advice which would be helpful for me and might be useful for many other users ?
I have a black and white photo on my Kobo Touch which I will download to my new Kobo Glo.
I would like to replace the FNAC splash screens (sleep and power off screens) by this photo. I believe that this is possible but I don't know how to do it!
Thanks for any advice,

Rojofo.