It looks like instead of pressing the RST button, he should be pressing the FLASH button?
Per your documentation, this is what I have in my Settings.h file, with #include “BlynkEdgent.h” included in my sketch.
#define BOARD_BUTTON_PIN 0
#define BOARD_BUTTON_ACTIVE_LOW true
#define BOARD_LED_PIN 2
#define BOARD_LED_INVERSE true
#define BOARD_LED_BRIGHTNESS 255
Regarding the status LED, it is flashing quickly after he presses and holds the RST button for 10 seconds. He has sent me video.