I don’t know why I can’t upload anything… I’m not sure what COM I have connected, it sais COM3, but when I check all devices it sais that COM3 is CH340 but… It doesn’t real because is ESP32CAM not arduino nano so… Anyone could help me? thanks a lot for help [image]

But you have to remove the IO0 <–> GND connection for the code to run after upload, and reset the board. Otherwise it will just stay in bootloader mode after reset.