Kindle's screen is partially frozen with the screensaver, the rest of the screen works normally. Already reset it and factory reset it, does anyone know if I can save it somehow?

First of all, I know this is not the kind of questions that usually are done in asklemmy but I don't know where to ask, sorry folks.

It's a 5th generation kindle and I really loved reading on it. :(

Bonus question if the kindle is doomed: best e-ink reader on the cheaper side? I don't want anything super powerful or fancy, I just want to load my collection with calibre and read on it. - bonus points if it's a libre and or open source friendly.