If you have a XIAO SAMD21 board, can you confirm or deny that there is a 2-3 second delay before it gets recognized by your PC?

Products & Technology XIAO
1

I’m on Windows 11 and when I plug it in to my laptop, there’s a 2-3 second delay before it gets recognized. I’ve tested this with 4x XIAO SAMD21 boards. Is anyone experiencing the same behavior? It doesn’t happen with my other boards

2

The fact that XIAO SAMD21 has a bootloader that waits briefly to detect a double-tap reset, during which it may not immediately initialize the USB stack. This delay does not occur on boards with more advanced MCUs (like ESP32 or STM32) or on boards with external USB-to-serial chips (e.g., CH340, CP2102, FT232), which initialize the COM port faster.

3

The Adafruit QT Py - SAMD21 is based on the XIAO SAMD21, and it doesn’t have this issue, it gets instantly recognized. The one by adafruit should have the same bootloader, no?