But, I have done a reset on one of my devices and trying to import a backup and I can't do that without a password... Wich I seems to have forgot that I even put in there once upon a time...
So how do I import the backup...?
Ah.
The backup file contains your "real" account passwords - which is sensitive information, and you won't want it to fall into wrong hands if the phone is lost or stolen.
And so, the file is encrypted with a password. The backup won't proceed until you've entered one (twice).
Sorry there is no "master password" or "reset" or "remind" feature.
If you don't remember the password to your backup file, you won't be able to restore it. And nobody else will be able to.