Dell Wyse 5070 no M.2 drive detected after latest BIOS update

So I updated the BIOS from 1.7.1 to 1.10.2 and I can no longer see my SSD.

 

To check the SSD I installed it in a identical unit running 1.7.1 and it was fine.

 

The problem now is 

 

Important Information

- If the BIOS version of the system is earlier than 1.0.4, update the BIOS to version 1.0.4 or later before upgrading to this version.
- Once the BIOS is updated to version 1.10.2, you cannot downgrade the BIOS to versions earlier than 1.9.0.

 

So what to do?