I just looked over Adafruit’s uberguide and have no idea why I added in that mistake, my fault 
. However, I did copy/paste your code exactly into a new arduino sketch and the lights did not light up, and the LED’s did light up before with incorrect code and the large number of LED’s. I believe that is something I will look into another time. I have been looking into other methods to fix my XIAO and found your forum post on DAPlink, but I do not know if this case is necessary since I can still light up the onboard LEDs. What other methods should I try to test the capabilities of my board; testing serial communication, testing the I/O capabilities with tools such as a potentiometer and servo?