Default [Q] Nexus 4 bricked HELP!

hi all,
in an attempt to reinstall stock on the Nexus 4 (16 GB) I followed these directions with the 4.4 rom

However, I didn't flash the bootloader or radio. When I rebooted the device went into a black screen that hasn't changed for 15 min. The display is still powered on though. What should I do?