The chip needs to be in download mode. For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html 搜索说,按BOOT,但仍不行; 试着同时按下EN+BOOT,然后可以了。 完成后,在Thonny中直接不断输出: invalid header: 0xffffffff invalid header: 0xffffffff i...