Hello,
I've used this breakout (https://www.tindie.com/products/MatthewWolfe/micro-usb-to-33v-breakout/) to connect my Omega2 to USB for power, but sadly LED goes solid on for few seconds just to go completely off seconds later. Unit gets a little warm over time, but nothing pop ups in my WiFi networks. I've used this guide (https://docs.onion.io/omega2-docs/hardware-prep-no-dock.html) to connect to right pins.