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  • Hi thanks for the suggestion, erase also uses the esptool, so I get the same problem:

    ....\esptool-master\esptool.py --port COM9 --baud 115200 erase_flash
    esptool.py v2.3-dev
    Connecting........__.............................................__

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

    Thanks for your help.

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