Worked on stabilizing the UFS subsystem within the tianocore/edk2 repository by addressing a critical bug in UFS DM Command handling. Applied expertise in C programming, embedded systems, and firmware development to deliver a targeted fix that resets the Trd->PRDTL field to zero after executing UFS SCSI commands. This change aligns the subsystem’s behavior with UFSHCI specifications, preventing command and PRDT discrepancies that could lead to inter-command failures. The solution was implemented as a single, well-documented patch, improving firmware reliability and maintainability for platforms relying on UFS device management workflows without introducing new features during the period.