Rooted Nexus 6p is stuck in bootloader Help!!!

A

AC Question

My rooted Nexus 6p boots up but then crashes right after it shows the google logo and the lock on the bottom unlocked showing that the phone is rooted and then just turns black and turns off. When I try to boot into recovery it does the same thing. I'm fairly new to rooting and my phone was working fine until I tried to download a cm13 update which required me to reboot my phone and now my phone won't boot into anything. Any help will be great thanks.