Can you post a pic of the nano, and link to where they came from? If you suspect there's a bad batch going around (which I am highly skeptical of), that information is useless without any way to identify which boards could be suspect.
Can you post a pic of the nano, and link to where they came from? If you suspect there's a bad batch going around (which I am highly skeptical of), that information is useless without any way to identify which boards could be suspect.