@jhowell Alternative to doing ADB backup and importing that resulting .ab file into DeDRM plugin config window would be having a rooted Android OS emulator (easily done when using BlueStacks (via
https://bstweaker.tk ), but IIRC there are also custom Windows Subsystem for Android installer images that are pre-rooted and usually also come with Play Store and other Google apps included) and copy the
/data/data/com.amazon.kindle/databases/map_data_storage.db (or whatever exactly was used at the time for that particular version of Kindle for Android app, I don't recall the details only that there used to be something before map_data_storage.db) and import that into DeDRM plugin config.
As I've done when I've had this particular idea (= using old Android app to get deDRM-able book files):
https://www.mobileread.com/forums/sh...12#post4287212
Only my testing wasn't done with as old Android app as @ownedbycats, I've tested with v7.6.0.39 (that downloads KFX files.