boox palma w/ broken screen, want to backup my data. help appreciated

[k_o]

hi
i dropped my boox palma from bed the other day and the display is now frozen/cracked (internally—the surface is still intact)
im not sure if the touch screen works. the buttons do.

it is recognized by my computer (prompt to connect 'onyx bengal') but i cant access the storage.

i followed some advice from this thread and put it in recovery mode. adb now recognizes it, albeit as 'unauthorized'.
my sole focus is preserving my data so that's where i paused, as i didnt want to blindly navigate recovery mode unless i was sure of what i was pressing. (esp since that OP was looking to wipe his data)

scrcpy --otg works, but not scrcpy by itself ('could not find any adb device')

i tried [tab, enter, tab, tab, enter] to enable usb debugging but it didn't work. i dont have a pin turned on which may be why?
or perhaps it *is* enabled but i just need to click OK on a dialog i cant see?

im quite sure developer mode is on.

im on a mac w/ a windows vm running in parallels. i dl'd usblog and usbview from the other thread so lmk if more info is needed

any help is much appreciated
thanks~