Jake Quicksilver questline not firing

[Megabiquette]

I've completed the 3 quests and the next one is not firing.
According to the wiki and researches I made on forums there's the quest about the foundry prison that you need to do in a certain way to access the Azif quest. I killed everyone in the prison because I had no other choices (due to autosaves while leaving the prison making Foundry guards hostile to me) and it seems like this is the "wrong" way to do it.

What's the point of having different options for the quest if only one is legit while others end the questline?

[player1]

That was my complaint also, regarding this quest.

Still, it is what it is. Only single way will lead to quest giver being impressed.