what is the proper way to start fresh on MMA ?

[lccseh]

hi - i would like to start fresh on mma (1.40.0.0934) on my samsung s9 running android 10, where i was syncing to a 400GB microsd card.

i am guessing that i:
a) uninstall mma
b) reformat the sd card
c) reinstall mma
d) delete previous device profiles
e) connect my device using usb
f) configure device profile

?

[lccseh]

hmm, i must be missing a step. i did:
a) uninstall mma
b) reformat the sd card
c) reinstall mma

but mma is still showing the previous content, even after running "check for new/changed media"

[lccseh]

in the meantime, i manually deleted everything from mma. however some info still persists and i can't get rid of it.

if i view album artists, it shows these 6: https://photos.app.goo.gl/SByppdPSzD4r4SS9A

i tried to manually delete (noting the mention of 0 tracks): https://photos.app.goo.gl/4xQ4vKoZswQjZg2Y6 . proceeding has no impact, even after doing "check for new/changed media"

i even deleted the internal storage from the mma library so it should only be looking at the sd card: https://photos.app.goo.gl/4TKiu4yeTZJtutMo7