Unable to connect with Firmware Upgrade tool in windows 7

  • I have tried the sugestions i have found in similar treads in this forum with no success.

    When i try to upgrade i get unable to connect

    i can connect with putty and then get

    ets Jun 8 2016 00:22:57

    waiting for download

    i have used flash debug tool and got this

    i have one Expansion Board and two LoPy and they behave the same.

    what else can i do?

  • I found the problem, the jumper for the TX pins were missing, i used the BAT jumper for the time beeing.
    Now the upgrade works,

    Thanx for the link, that was one post i had not read yet.

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