Onyx Poke5 BOOX User Manual page 46

Screenshot
Tap the two corners (shown in the pic)
on the screen at the same time to take
a screenshot (PNG format). This
function is only available on the
reading page.
The screenshot can be saved to local
storage, shared by
scanning QR code and other means. The local saving path is
Storage\Screenshots
Refresh
Tap the hamburger menu on the upper right corner to choose
Refresh settings.
When you drag a page, speed mode
is used by default.