Problems with flashing

Dear Luftdaten,

I cannot get the Nodemcu v2 flashed.
I updated the drivers.
And I connected the Nodemcuv2 with the usb cable.
In the window of airrohr flasher it says at the bottom: “no device selected” when I click “upload.”

Dear Cleanair,

Please provide some more information. What version of operating system do you use. Have you tried to use different USB cable?

Tried a different cable and it was done in a flash…

Thanks irukard

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Some USB cables are power only (especially charging cables in bundle with wireless headphones and some power banks). Only 5V and GND without data lines.

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That seems to be the problem then. The first cable charged multiple devices just fine, but could not make the nodemcuv2 visible.