I see you are asking about HK-51 companion.
Please check this link from Dulfy. HK-51 Guide
It tells you exactly what to do, how to get all the achievements and every bonus, also it says on Imperial or Republic. I hope it helped and if you have more questions please let us know
=^.^=
I think they were asking about HK-51 as a typo for HK-55.
As you have Yuun already, then you have done to Find a Findsman. Arma Rasa should be in your Alliance Alerts. If you have the mail about Shroud of Memory, then you would have been subscribed for Arma Rasa, because they both required January subscription dates. You won't need HK-51 at all for this, just do Arma Rasa to get HK-55
@Rorhi Hmm I did have HK 55 for a small amount of time and he died. There was a conversation after he died and the options were 1. He was a hero 2. Do we have a backup of his memory core. 3. He was just a droid. Maybe I picked the wrong option?
Anyways here is a screen shot of my companions and quests etc if that helps anyone
Then double Check the Link proxos had Postet.
If you had an Sub in the Timeframe, send an InGame Ticket, should be a fast thing.
Additional you need to be an Subscriber on Jan 1st to get HK-55.
