none SM BIOS is encrypted but digitaly signed. on RoT system the BIOS is validated before update process and before start of CPU.is that what you mean by not a RoT firmware? What is RoT firmware? Root of Trust firnware? So they are not encrypted?
X13SRA,X13SWA are not RoT protected(so far).
i can bot update BIOS with X13SRA BMC/IPMI (only BMC FW)
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