Just going to put this out there.
Anyone having a hard time with the “waiting on device”. The simpliest method i found was just to use windows 7. Windows 10 has locked down drivers even more and was causing my issues. When i installed win 7 on a spare laptop and ran the intel drivers “Step 2” you get some red prompts and click install anyways and that should resolve the issue. The drivers will take this way and ADB/fastboot sees the device.
Just my two cents to help people stuck.
*EDIT*
My mistake. Meant to post this in the Rom thread… Will leave this here as extra reference.