Modifying a PI2 for one of my builds and during the de-soldering process, it looks like I may have bridge a copper ring (the yellow circles in the picture) to one of my 5v power connections for the USB pins. After connecting a USB port to one of the USB pins I noticed when I booted up the Pi, nothing would register when I connected a keyboard to it. I took a voltage meter and start testing areas and the copper rings at the bottom and the 5v pins would beep meaning that they are connected to each other. I then started testing the other 3 USB pins and all of them beep for all 5v and ground connections. I am assuming the copper ring is connected to one of those 5v connections (the yellow circle)
I tested every USB pins by soldering a USB port to them, but none seem to work when I boot the Pi2. The Pi2 functions fine without it, but I now have no USB ports (sad face).
Anybody have any ideas on how to fix instead of getting another Pi2. I am wondering if there is a way to prevent that copper ring and the 5v from the USB pin from connecting?
I even tried connecting a 1000c PowerBoost 5v and ground to the USB port and connected the data cables to the Pi2 USB ports and I still did not get any data from the ports.
Unfortunately, I did not test the USB ports before desoldering.
