The screen works, so I'd switch the case. Amazon has a few options.
https://www.amazon.com/GuardV-Leather-Color-Standing-Sleep/dp/B0969JND8F/ref=mp_s_a_1_4?crid=3JAT6ZSVSAAO5&keywords=boox+nova+3+case&qid=1688646985&sprefix=boox+nova+3+case%2Caps%2C147&sr=8-4