Issues sideloading 5.0.1 topic

So ive been racking my brain for the last 2 hours trying to figure this out and im still stuck. I just finished unlocking my boot loader on a completely stock nexus 5 running 4.4.4

i used this methodfor unlocking my bootloader
https://www.youtube.com/watch?v=2cOUseflKNE

I then downloaded 5.0.1
785a2f7af3718dba7e569decde8b6c4dc476a309.signed-hammerhead-LRX22C-from-LRX21O.785a2f7a.zip

i then tried side loading the zip using this method
https://www.youtube.com/watch?v=uvch38KDmTk

but i get one of 2 messages, no device found or waiting on device. nothing happens either way

i then tried
http://www.androidcentral.com/how-ma...s?pg=4#content

and got the same message

what am I doing wrong or missing. My boot loader is showing as unlocked