My Kindle was not connected to the charger but I followed your suggestion and switched off and restarted - no change, I still get the same window and lack of response when I click on 'Update'.
Paperwhite about 2 years old
How do I 'sync' it?
Still the same problem, even though I just purchased the Kindle book I wanted on Amazon, using my updated credit card details, I don't find it on my Kindle! I don't have time now to work on this any longer and believe it is a problem with the Kindle. I will not use it in future.
Don't know. I'll now have to spend time going back to the Amazon site. Sorry. I don't have time. Good bye.