ESP32连接超时

BYR

教程里说的下载的时候出现:connecting……同时按住BOOT和EN，然后释放这个BOOT和EN是啥 在哪里呀 我这板子啥按钮都没有T T新生小白真的不太明白 求义父帮忙求解

BYR

gen_esp32part.py:507: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
Sketch uses 661442 bytes (50%) of program storage space. Maximum is 1310720 bytes.
Global variables use 39804 bytes (12%) of dynamic memory, leaving 287876 bytes for local variables. Maximum is 327680 bytes.
esptool.py v2.6
Serial port COM5
Connecting........_____....._____....._____....._____....._____....._____....._____

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header