Is it a hard brick? I'd be surprised if it was since you haven't so much as rooted it. Are you able to boot into the bootloader by holding down the volume down key when powering on?

LG Nexus 5 | ParanoidAndroid 4.2 BETA1 | Franco Kernel
Asus Nexus 7 FHD Wi-Fi | Stock Android 4.4.2 | Franco Kernel | Xposed Framework