Hello guys!
I am not an expert but I read and try to make it happen. This might be simple, however, I was not able to find it in many tutorials. So I said I would share it with you guys. Because I have learned a lot from you guys. So I am trying to keep passing knowledge here. Please follow the scenario and you will find the answer.
Recently I was working on changing the Wallpaper of 8841 and 8865. I was kinda stuck on not having the new images that I uploaded. When I go to settings > wallpapers. I can only see the old images or the default images. Even though my sizes images were perfect and the directory was OK! no syntax errors in my List.xml everything was smoothly restarted my TFTP servers couple times no changes. I was like whats going on until I found the solution is by deleting a file named List.xml.sgn !!! and restarted the TFTP servers and worked! List.xml.sgn was generated again after the restart.
Thank you!
// Moe