Got my NEX6 with 16-50 PZ lens an hour or so ago. Charged it to 30%, haven't upgraded firmware. I get a "Cannot recognize lens, attach properly" message. I have tried putting it on and off countless times with both the "Release without shutter" enabled and disabled. Nothing is on the contacts, or sensor, or anything really. What I do is I put it on, turn it on, then the aperture blades narrow in 3 times making a clicking sound each time when they shoot back...and I get the error. Please not that I got this in "Good" condition from Amazon Warehouse Deals which may mean it could be faulty.