Performing Fausto keyupdate

Hi, confused newbie...
Tried to study as many "how to" as possible, but don´t seem to succeed updating old keys via Fausto and a fresh softcamfile.

What I do:
Run Fausto - press load keys.bin - press editor - load keys.bin again - tools - import keys - load softcam.key - in upper window new info loaded - save file (press yellow arrow) - Fausto keys updated.txt created - hit closing cross (upper right corner) - (back in editor) - save keys file - keys.xml & keys.bin created (in file where loaded keys.bin from)

If I next load the newly created keys.bin - tools - import keys - load same softcam.key - SAME updating in upper window is performed!!

No real update (besides Fausto keys updated.txt > not used??) is done to the keys.bin...???

Am I doing some procedure wrong? What is Fausto keys updated.txt actually used for - my information on what update should have been done on keys.bin?

Sorry - please explain!

My thought behind: maybe there are "unusual keys (Scandinavian or Nordic) not fully included in all updates. The key.bin size vary a lot between updaters. Thats my reason to take my old key, enter it to Fausto and update it through Fausto softcamtool. But its really the caids worrrying: 090F is not always included, and suppose Fausto is not primarily designed for V-guard...?

Sorry if I offended You - still learning how satkeys and satboxes work...