YOU NAILED IT!!!
It is high chance that Pin 37 got broken in my Pi 4B!
I changed the SD image into my Pi3, it turns out the system working just fine to start up.
Although the Zynthian kit v4.4’s case doesn’t fit its Pi3’s HDMI port, I may buy a new Pi 4B for this project…
A big thanks to @wyleu, and thanks for @jofemodo your kind offer to re-send a new module to me.
OK, I’m going to dig into the Zynthian kit and play around with my Pi3 for now…