@ajb2k3 i've tried

#include "M5StickCPlus2.h"

void setup() {
auto cfg = M5.config();
StickCP2.begin(cfg);
StickCP2.Display.setRotation(1);
StickCP2.Display.setTextColor(RED);
StickCP2.Display.setTextDatum(middle_center);
StickCP2.Display.setTextFont(&fonts::Orbitron_Light_24);
StickCP2.Display.setTextSize(1);
StickCP2.Display.drawString("Power LED", StickCP2.Display.width() / 2,
StickCP2.Display.height() / 2);
}

void loop() {
// inside power red led control
StickCP2.Power.setLed(1);
delay(1000);
StickCP2.Power.setLed(0);
delay(1000);
}

in arduino, but the display didn't work

@ajb2k3 but I'm not doing that in the images above?

@ajb2k3

But, my device is the plus2

i've tried erase:

and burn again

firmware monitor:

and it still doesn't work :(

I can run burn normally, but my screen simply won't turn on, the LEDs also work!

The firmware