I have four Seagate ST2000DM001 drives with three different firmware
versions. When I check for firmware version updates by entering the
serial#,...

Drive #1 (received as warranty replacement for failed ST32000641AS):
"important update" available, but when I use the firmware update tool to
update it, it tells me that it is not appropriate for that drive. The
firmware shown on the label (and by SeaTools) is not one of the versions
ever used on that model, according to the Seagate Web site.

Drives #2 & #3 (purchased recently as a "Retail Kit" with the Model# on
the package STBD2000101): no update available.

Drive #4 (also purchased recently as an STBD2000101 Retail Kit).
Warranty expiry date a few months earlier than the previous two and with
a different firmware version: also no update available.

Odd.

Perce