There's something screwy going on here.
https://shop.boox.com/products/gocolor7 says this is UFS.
But it's clearly a 64 GB eMMC.
I guess that they cheapened it up and never told the marketing folks?
Please post the result of "edl /g".
Code:
edl /r /pmisc misc.img
Check to make sure that the image is all zeroes, then:
Code:
edl /w /pmisc misc.img
Is it a problem that you can't write anything?
Just for fun:
Code:
edl /m1 /r boot0
edl /m2 /r boot1
Do you get two (empty) files of 4 MB each?