How to downgrade FreePBX cleanly

How can I cleanly downgrade FreePBX (and related config files) without using the web interface (since it’s currently not supported)?

Is the following enough? (supposing one has a backup system containing the older FreePBX installation)

restore files in:

/var/lib/asterisk/agi-bin
/var/lib/asterisk/bin
/var/www/localhost/htdocs/freepbx
/etc/asterisk
/etc/amportal.conf
/usr/sbin/amportal

restore “asterisk” database.

Thanks,

Vieri

You need to restore the MySQL database overwriting the current data.