Here is the full dump of fwupdate.ini from the OP archive.
# Disk firmware update config file
# The section name is the disk model. Within each section, the
# current fw version maps to the pathname of the new firmware image we
# want to load. The string "*" will match any firmware version...
See if this one works, it's the "E007" version. Uploadfiles.io - ConstellationES3-Megalodon-SAS-STD-E007.zip
If it doesn't, try entering your drive's serial number into Seagate Technology - Download Finder
Sometimes the different drive batches get different firmware revisions.
I have recently purchased several models of HGST HDD and SSD media and decided to synchronize their firmware versions, sharing the achieved results. I hope my following findings will save some time for the fellas attempting the same noble quest.
I wasn't able to find firmware upgrades on the...