Okay guys, this is repeatable. I’ve tried on two different computers (both Win7 Pro), used two different USB cables, and two different Cerb boards (Cerb Bee and Cerb40)…
Both boards had 184.108.40.206 on them and were recognized before the firmware update began. I used the STM Tester to update the TinyBooter on both with no issues. I then used FEZ Config to update the firmware to 220.127.116.11 (latest). At the end of the process I get the Success message, the device restarts, and then I get the USB device not recognized error from the system tray notification. I’ve tried the same process several times on both boards with the same results.
I poked around the forum and found a couple other similar threads. The only advice given was “reload the firmware” :wall: