LoPy4 Firmware upgrade impossible

[robert-hh]

@dicktonyboy Did you connect P2 to GND, or use the Expansion board 3?

[dicktonyboy]

@jmarcelino Well, at it's simplest, downloading and running 'pycon_firmware_update_1.14.2.exe' accepting all defaults and knowing the com port is correct AND ensuring the port is available (no other software running) The result is 'Upgrade failed Failed to connect ESP32: Invalid head of packet (\x08)' In all other ways I'm pushing and getting files back and forth and running program happily. 1st expereince with these modules and they are almost simple to use than Arduino.

[jmarcelino]

@dicktonyboy
Can you be more clear please? What do you mean by "No route for firmware upgrade works". What exactly is the error?

Thanks