Kayak,
it seems to me, that you place the OTG adapter at the NanoVNA and not at the smartphone. Why do you need otherwise the"...USB-A to
micro-USB cables.."?
You need an OTG adapter plugged into the smartphone. The OTG adapter has a USB-A socket, into which you plug the USB-A to USB-C cable, which comes with the NanoVNA.
--
Joerg, EX-DB2OO
