Liqiqi enhanced SPDM authentication robustness in the microsoft/mu_tiano_plus repository by refining the device authentication process within embedded systems firmware. Using C and leveraging expertise in security protocols, Liqiqi updated the authentication state following successful certificate chain validation and introduced a new SPDM data parameter to support broader hardware configurations. The solution was validated through real hardware testing and aligned with SecurityPkg practices, reducing risk in secure boot and remote attestation workflows. This targeted engineering work improved the reliability and interoperability of SPDM authentication, addressing compatibility challenges and ensuring more dependable device authentication across diverse SPDM implementations in production environments.