After some searching and reading I have some questions that needs to be answered for clarification.
I'm getting a Z1 from a friend and I want to upgrade to the Z3 HDD. Is the firmware update for the Z1 different from the Z3 HDD upgrade?
In doing the HDD upgrade would I receive the newest Z3 firmware as well as the newest mapping data?
With a few posts I have read it seems as these are two different things. I would like to think that the Z1 is physically the same as a Z3, just using different data off the HDD.