X570D4U-2L2T BMC no BIOS

BMC: 1.20.00
BIOS: P1.40
PSP: 0.14.0.2A
Microcode: (nothing shown)

When clicking on the BIOS link, receiving the same type of error "The resource at the URI /redfish/v1/Systems/Self/Bios was not found."

Tried the patch, however received this error:

{"error":{"@Message.ExtendedInfo":[{"@odata.type":"#Message.v1_0_8.Message","Message":"The resource at the URI /redfish/v1/Systems/Self/Bios/SD was not found.","MessageArgs":["/redfish/v1/Systems/Self/Bios/SD"],"MessageId":"Base.1.5.ResourceMissingAtURI","Resolution":"Place a valid resource at the URI or correct the URI and resubmit the request.","Severity":"Critical"}],"code":"Base.1.5.ResourceMissingAtURI","message":"The resource at the URI /redfish/v1/Systems/Self/Bios/SD was not found."}}%

Is there any sense of when updated firmware will be available that resolves this issue?

A rock support emailed me the *Lab* Bios L1.23& BMc   L1.25.00

I guess it's not currently supported in the release version.

You can use Terminal on Mac or PowerShell on Windows. cURL is a standard tool to execute requests (like HTTP-get)

However... when I execute

curl -s -k -u admin:$PASSWORD -H"Content-type: application/json" -H'If-None-Match: "123456"' --data '{ "Attributes": { "Rome0179":"Performance" }}' -X PATCH https://192.168.88.112/redfish/v1/Systems/Self/Bios/SD

I receive:
{"error":{"@Message.ExtendedInfo":[{"@odata.type":"#Message.v1_0_8.Message","Message":"The resource at the URI /redfish/v1/Systems/Self/Bios/SD was not found.","MessageArgs":["/redfish/v1/Systems/Self/Bios/SD"],"MessageId":"Base.1.5.ResourceMissingAtURI","Resolution":"Place a valid resource at the URI or correct the URI and resubmit the request.","Severity":"Critical"}],"code":"Base.1.5.ResourceMissingAtURI","message":"The resource at the URI /redfish/v1/Systems/Self/Bios/SD was not found."}}

(Working on a normal X570D4U)

How do I go about doing this update? I'm new to this kind of stuff.