> But he also indicated that Coin expected to produce some faulty cards because of the volume of devices it was manufacturing. “A big part of doing mass production is stabilizing each unit so it performs as well as we want. When you build tens of thousands, you get some variability,”

Shouldn't they test the cards before shipping them out so users don't get the really crappy ones? The one the op received was completely broken, and worked at one of the four places he went to after trying 4 times.