Global variables use 39960 bytes (12%) of dynamic memory, leaving 287720 bytes for local variables. Maximum is 327680 bytes.
Performing 1200-bps touch reset on serial port COM4
Waiting for upload port...
No upload port found, using COM4 as fallback
"C:\Users\XXX\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\4.9.dev3/esptool.exe" --chip esp32s3 --port "COM4" --baud 921600  --before default_reset --after hard_reset write_flash  -z --flash_mode keep --flash_freq keep --flash_size keep 0x0 "C:\Users\XXX\AppData\Local\arduino\sketches\2617910D755B9DE351DFBC01EF7D7EE2/Blink.ino.bootloader.bin" 0x8000 "C:\Users\XXX\AppData\Local\arduino\sketches\2617910D755B9DE351DFBC01EF7D7EE2/Blink.ino.partitions.bin" 0xe000 "C:\Users\XXX\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0/tools/partitions/boot_app0.bin" 0x10000 "C:\Users\XXX\AppData\Local\arduino\sketches\2617910D755B9DE351DFBC01EF7D7EE2/Blink.ino.bin" 0x2d0000 "C:\Users\XXX\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.2.0/variants/adafruit_qtpy_esp32s3_n4r2/tinyuf2.bin"
esptool.py v4.8.1
Serial port COM4

A fatal error occurred: Could not open COM4, the port is busy or doesn't exist.
(Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.', None, 31))

Failed uploading: uploading error: exit status 2