Nexus 5X won't stop restarting

[AC Question]

Hello,

My nexus phone is trapped in an endless cycle of restarting; I've tried to do a factory reset on it but I can't get past the screen where you select "Recovery mode".
What now?

 

[B. Diddy]

Welcome to Android Central! Were you following the steps here, under Advanced Option? https://support.google.com/nexus/answer/4596836?hl=en