I try to use my Rode SmartLav+ with Scarlett 2i2 USB pre-amp. I already bought Rode SC3 adaptor and small jack to big jack adaptor. I try to use any of the line/instrument inputs on my pre-amp, but it doesn't work. Of course when I plug Rode SmartLav+ to my smartphone or laptop it works. From the other hand, when I plug my Beyerdynamic set with Scarlett pre-amp it also works. I've also checked small jack to big jack adaptor and it works with eg. headset. How do you think - what can be a problem?
Below I provide images for my configuration. When mic is plugged-in to pre-amp the o'ring of the gain potentiometer is not even "turned-on" (it has diode indicator which cause it to shine green, yellow or red depending on the mic sound input).