The reason appears to be pretty simple. Kodak cameras have two
flash parts, or one larger part that's segmented in halves. I
strongly suspect that the Nikon cameras have only one.
All firmware in everything electronics, from computers to cell
phones, use flash memory these days. The way these parts work is
such that they need to be erased, then written to, all at once. If
the data transfer should be interrupted, then the device will be
rendered inoperable.
I can tell you that this is the reason we don't support user flash
upgrades for the devices we make around here. If it gets messed up,
the unit is dead and that means it has to go back to the service
shop to be straightened out. Most times, it means that the part
needs to be yanked off the board and replaced.
Ever notice that computers tend to use dual parts, so that one is
still useable in the event that the other gets hosed up during a
reflash? Maybe it's too subtle to notice unless you've had a load
mess up and suddenly found yourself coming back up with a BIOS
revision that is two levels back.
Kodak's cameras work in the same way. At least both my 620x and 660
do. They do this for two reasons. One is the risk of a bad flash
write. The other is if the new firmware should have a bug, it'll
switch to the one before. I've seen both my cameras do this should
they hang up.
The Kodak units are larger than the Nikon ones, so it may well be
that Nikon just didn't have the space to use dual flash parts in
their design. It might be that they wanted to save on the cost of
the second part. It may be that they just like the idea of having
it already in a repair center should things go wrong.
Heck, it may be that they just don't trust end users to actually do
the upgrade right in the first place. I know that
I don't trust
end users to properly reflash the firmware in the products I design!
Regardless of the reason that Nikon has decided that the units must
go back for a reflash, that's what must happen. They aren't going
to change their minds about this no matter how many posts there
might be on the subject.
That leaves all of us to simply decide when, or even if, we will
send out cameras in for the update. Personally, I'm not sending my
D1H in for it any time soon. I don't see the need. The camera is
working fine as it is.
Stan
Guys,
CHILL OUT!
There are many digital cameras (consumer and D-SLR) which can't be
flashed by the user simply because of the type of EEPROM chip they
use to hold the firmware. Sony digital cameras for example can't
be flashed by the user and have to be taken to a service center.
Nikon are offering the upgrade for free, all you have to do is get
the camera to the service center.
--
Phil Askey
Editor / Owner, dpreview.com
--
Amateur Photographer
Professional Electronics Development Engineer
More info and list of gear is in my Posters' Profile.