Entering EDL Mode
Before powering on the board, hold the EDL button. After powering on the board, release the EDL button to enter EDL mode.

-
Hold the
EDLbutton on the board -
Connect a 20V Type-C power adapter (PD compatible)
-
Release the
EDLbutton on the board -
Connect the Dragon Q8B USB-C port to a computer USB port using a USB Type-C cable