Well,I am so far from US for a replacement.And this stuff began after i deleted the assets.Then i reset the device for once and bang!
Or the full history is like that:
-I got my kindle,registered it and there wasn't any ads.
-while solving an index problem,an employee put these files without my permission.
-I deleted them.
-Then contacted again and reminded relation between "terms and conditions"-"putting content without permission"
-Got my special offers disabled.
-Screensavers started to not to appear.And there was a restart bug that forced me to reset the kindle for 7 times today.
-contacted again.after 40 minutes of chat,employee finally accepted to help me by providing the files tomorrow(I dont believe it will help actually)
-I'm so frustrated that can eat my kindle.
-My dog just shat and pissed on my kindle.