The download in this post is for 19041.4981(newer than your dev build). This is what goes in the A + B folders along with your USB.
The problem may be the blank hard drive (I could be wrong). You need to use HDD master to create the partitions on your drive.
I referenced this...
THANK YOU! My Xbox is now recovered and back in business. I will be removing myself from the insider program immediately!
Thank you for your feedback! When that update is available does it typically get posted on this site as well?
I was performing a factory reset on my Xbox and unfortunately after the reset process it would not boot back up. After doing some research it...
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