I updated my storage Seagate 1TB drive firmware but it didnt fail the DST test though, now im running it as the main HDD bcse if it fails i wouldnt cry on it + all my data is safe on a WD FALS edition. Although, that test u did could be related to the SMART status, however the Seagate SMART has been giving wrong data and statistics apparently (including on mine).. perhaps the wrong SMART results reported by the HDD made the DST fail? If u ran a Disk Scan with no errors at the end, and if the HDD is running at bootup with no problem, yeah why not update that firmware. Else, if ur hearing clicketing noise and u have bad sectors too just RMA and dont wait. Usually, a DST Failure error indicates a failing drive.