I can't power my arduino nano every with a 9v battery. I've tried everything. I've connected to a breadboard, ive connected it with jumper wires and yet it still doesn't work. But when i plug it into a usb power source it boots right up. Any help?
By the way: I'm very new to arduino so i might of messed something up idk.
The connections are not soldered but they should'nt have to be in practice. I know it isnt working because neither of the 3 leds turn on. I connected the - wire to gnd pin and the + wire to the vin pin. As in the photo. I expected the leds to turn on but nothing happened
You may already have ruined it. Intermittent connections are very hard on electronics, and as you have noticed, it isn't working now. You will need to solder pins to the modules to use them with breadboards.
Adafruit and Sparkfun have excellent video tutorials on how to solder. If you want to get started in this hobby correctly, that is a good place to start.
Your Nano Every comes with pins (as shown in your image). Use jumper leads to connect it to the battery. Or place the Nano Every in a breadboard and wire from there.
If that battery is a PP3 like the below, they are quite useless; replace by 6 1.5V batteries.