Your info block says: "Kindle Paperwhite" -
without any hint as to which model (Gen-1 or Gen-2).
Your post does not help any with information on model or firmware version you are using.
Ah, so let us start out at the basics, where did you get your firmware package(s)?
From this link? -> ::
https://www.mobileread.com/forums/sho...1&postcount=29
From this link? -> ::
https://www.mobileread.com/forums/sho...8&postcount=42
From the first post in this thread?
Which of those packages did you install?
What model of Paperwhite?
What firmware version?
Where did your version of kterm come from?
What version?