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  • Try it without specifying a baud rate. I think will try and find one that works.
    For example this batch file to read the chip info:

    :: Read ESP8288 or ESP32 chip info
    set /p pport=Enter a Com port 
    echo %pport%
    pause --port %pport% --no-stub chip_id --port %pport% --no-stub read_mac --port %pport% --no-stub flash_id