how can I login to my home assistant if I lost my MFA device?
You’ll probably need to delete some files via ssh.
Thanks bro… I finally found a solution by editing a files which remove the mfa via terminal console.
I have the same issue. Changed phones and no longer can Login. I’m using hassio so don’t seem to be able to access the underlying file system via ha CLI !?
use samba… and you should be able to access the underlying file…
Dont know why I didn’t think of that 
thanks! I did what was posted here and it worked:“renamed auth_module.totp to auth_module.totp.tmp which I found in /config/.storage”.