How to launch level on phone?

i am trying to run a level made in ue4 on my Pixel 2 XL but when i select device manager the pixel 2 does not show up even when i have it connected via USB

All help is appreciated, thank you!

have you set your mobile device to developer mode?

yes i have

when you plug in the device there should pop up a message on it that asks if you want to connect to your workstation. Have you ticked that?
Is USB-debugging running?
Have you followed this steps: