I hate to duplicate a post but somebody up the thread posted a link to the Barclay card travel community in which a manager details the technical aspects of being able to change emv offline chip pin any time anywhere
http://www.barclaycardtravel.com/t5/...737134#U737134
I thought it was really interesting and I don't understand why other US issuers don't do something similar and stop using "pin change" difficulty as an excuse not to go chip and pin. I read a while back that this is how pin changes are handled in the UK as well