[QUESTION] Three(3) Vitas - How find out which one's connected to acc?

[SaMKo1982]

At first explenation:

Got three PS Vitas. All of them are on 3.60 (henkaku). One ist used by my dad, one by me an one I would like to update to OWF 3.63 to download my bought games from PSN. I'm not sure if all of them are/were connected to my account (in QCMA when i connect two of the Vitas my account-name is showed, with the third Vita QCMA shows "User007 connected". What could that mean? Is there a possibility to find out which vitas are still connected to my account? In my account-management I got 2/2 vitas activated and I don't want to update the vita which isn't connected to my account. Just don't want to update for getting my games downloaded only to get the message that still two vitas are activated and I have to deactivate one first.

Hope it was clear what I'm trying to reach.....

And thanks for your help in advance :)