Dear
I Have Rb433 but i forget the password I need the backup from this RB how can i backup this RB without reset it 
Cannot help you with password recovery but I have weekly scipt that (a) backup router and (b) sends email with this backup this way if the router goes down i can quickly reset and either run the backup.rsc from files or use the export file from my emails to restore router to working configuration then at the end set new users and passwords.
you can’t recover anything from the device if you don’t know the password, it is a security measure