Export file of my old mikrotik system

Hi
I have a big problem since two years with my mikrotik.
I have a back up file which contain my best mikrotik configuration but I am scared to restore it, because I have changed the total system of mikrotik such as radius ip, username and password, ...etc.
How can I mange this back-up file without danger?
Please help me to solve my issues.
Thank you....

If you can take the router out of service for a while.
(Or if you have a very similar one you can use, and are very lucky)

Note: If things go badly you may need to do a netinstall,
so if you haven't practiced, you might be wise to get/find a spare or low cost mikrotik and practice netinstall on it.

export your current config (as text) use show-sensitive option.
backup your current config. (as backup)

ideally try and find the version of routeros the old backup was running on.
Download that version of routeros.
Also download your routers current version of routeros

Attempt to restore backup onto current version.
(Maybe a couple of times)

If that completely fails,

  • reset router, and hopefully downgrade to downloaded version of routeros.
  • retry restore of old backup (maybe a couple of times if necessary)

If get it Restored,
Export your old config as text (if v7 use the show-sensitive option)

Upgrade router to the newer routeros (if needed)
Restore the new backup of current config you made earlier.