Get back lost imei number on samsung

Hi all.
I have read a number of threads, regarding lost imei numbers here on android pit.
I have searched a bit on this, and I have found an article on this.
I have not lost any imei number my self, so I can not say if it works.
Anyway, this is a bit of help if it turns out to work.
This tip is for Samsung devices by the way.

http://www.droidviews.com/backup-and-restore-lost-imei-on-samsung-galaxy-devices-without-root/