Hello there and welcome to Just Answer. My name is ***** ***** I will be assisting you today. I am an engineer with over 30 years of electrical and electronic training, repair and installation experience. I will try and answer your question accurately and precisely so that we can get you on your way.
I need to gather some more information from you in order to help.
It sounds like you are trying to update your Kindle. Can you go to Settings, then Device Info and give me the serial number of your Kindle please?