Not booting after attempted screen repair

The iPhone 5c I attempted a screen repair. I did not unplug the battery and it was on so I could quickly see if the screen had any issues. I plugged it in and nothing came on while I was diagnosing the problem (I had flickering).

I then thought that the issue was the screen had died, so I tried the original screen. It did not work as well. I panicked, and plugged it into the computer, but it does not recognize it at all.

Did I short it out? Is there any way for me to fix it if so?