I dug one of mine out of the cupboard and just checked. There's an option for refresh after every: with options from 1 page to 6 pages. I guess better than I remembered, but that's still not what I was after.

What I really want is for the framebuffer to remember past pixels, so that the blacking out is restricted to only areas where there previously were pixel. I don't really mind noise on where the text was while the page is replaced, it the big areas flashing black needlessly that's distracting.

I might try out this firmware over the holidays though. If I get back into using the kobo as an e-reader, maybe I'll look at the issue myself now that it's open source, if it's not been addressed by someone already.

In case it's unclear, KOReader is an application you can run - not replacement firmware.

For the stock reader I believe this was the option I changed to disable automatic refresh entirely : https://old.reddit.com/r/kobo/comments/pbqey3/page_refresh_i...