Unbricking a device is often as simple as connecting it to your PC and flashing a stock image. What if your usb port is jacked up? For now there is no real way to fix your device. A recent commit to AOSP shows that allows users to send commands via network and not just through the usb port...
Bootloader unlocking veterans probably did the same thing I did when they first got their Nexus 6P. Of course the first thing I wanted to do was get that bootloader unlocked and get TWRP installed. I plugged my 6P into my PC and proceeded to boot the phone into fastboot mode so I could unlock...