171
Nissan To Deactivate Key Features From Early EVs
(www.carscoops.com)
This is a most excellent place for technology news and articles.
I guarantee it's a separate piece of hardware. The leaf is sold all over the world and needs different hardware to work on all the different radio frequencies. There would be at least four or five different cell radio modules for the leaf.
Well, I said maybe is not physically possible, not that this is the cause.
But still, even being a separate piece of hardware does not make automatically possible to change it with a newer one.