I ran both boards for about 30 minutes apiece today, and both boards perform the same. Instead of the Packet count incrementing about once per second, the Header Error increments about once per second. The ratio of Header Errors to Packets is about 20:1. The Dashboard reported from about -8 to -10 dB and an RSSI of around 88 during the test period. The File indicator never showed a file name, just Infinity%.

Would it be possible to reload the 2210 Version 1.0.0 firmware since that was what was apparently on it previously?