I think I hardbricked my phone. Halp.
I finally got a working USB cable so I was able to connect my phone to my computer again. I was following the superboot directions for unlocking and rooting it, all went well until I got to the part where the directions said to pull the battery after 15 mins... it didn't reboot when I put it back in. It stayed stuck on the google logo + unlocked lock screen. Even when I did "erase all data and restore to factory settings."
I went into recovery mode and tried every option, but they all inevitably lead back to the Google logo + unlocked lock screen. There is no rebooting for me. =(
Any advice? I can't seem to connect it back to my computer at this point either.