I am running into an issue where my Arduino Nano is no longer turning on after being plugged into the computer. The Nano worked fine before soldering to the perfboard. Now, the led will not even turn on to indicate it is on. I only soldered the pins that I am using for the circuit. Two jumper wires under the Nano are soldered onto the perfboard to ground and 5V.
Edit: It will not turn on through VIN either
Please provide a schematic (photo of hand drawn one is fine); it needs to show ALL connections (including power).
If I count the pins, I'm confused about the black line. You have a G written in the second image so I assume that it's GND. However, according to the Nano pinout, I suspect that you have connected that to the 5V pin of the Nano. It's difficult to judge the orientation of the Nano on the proto board; I've based above on the location of the pins marked TXD and RXD on the proto board.
Here is the schematic I made. The perfboad does not have the TX, RX, or Screw Terminals.
The G is ground in the drawing and the purple color is 5V. I verified these connections using the continuity detector on a multimeter.
On the Adafruit web site for this product it says
Design your own Bonnet or pHAT, attach custom circuitry and otherwise dress your Pi Zero with this jaunty prototyping Bonnet kit!
It doesn't say anything about attaching a Nano. Are you aware of this?
What sort of nano are you using?
This is the web page about it
I don't think it is suitable for what you want.
You are right! looks like I need to figure out how to desolder all of this. Thanks for your help
Duh ?? 
Besides the wrong board, never, ever direct solder a Nano or any other one (like WeMos D1 mini, etc.)! Always use female headers and plug Nano to them: this can be useful to let you easily update the software or replace the Nano in case of a failure or to swap two of them with different software to be tested, or different purpose.
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