If I put a pin in place on my Z1C under settings -----> security and when I want to remove the pin setting I find the top NONE setting to be greyed out, and the only way of fixing this is to go into settings then credentials and clear them, this let's me change the top section to NONE as it brings it back from being greyed out.
My question is why is this happening as I shouldn't be required to keep clearing the phones credentials.
