Switch phone lost dev preview?

Hello all,

I'm an owner of dev account witch I had when I used L920.
Now I switched to L925, installed preview for dev app and it won't install the update cause it say I must have an account.
So he's not assuming my new phone?
So I need to change anything?

Thanks in advance

Make sure you developer unlocked your phone already. Unregister the old phone if necessary.

I didn't register the L920 and was working :-)
So I'm guessing I need to register this one to work now.

I have 2 phones (925 & 1020) on my single phone dev plan, guess i was just lucky it slipped through.

I thought any of the dev plans allowed up to three devices registered as dev devices?