[Leica] Leica M9 CCD problem

[red735i at verizon.net (Frank Filippone)]

My M9 has different FW then when it left the house... I forget which....  I
think the new one is 1.204

I BELIEVE that the newer FW checks something in the electronics to tell the
camera which cover glass is installed.  Different attributes are applied
dependent on which glass is in there....

IOW, I THINK the newer FW has both old and new glass characteristics.  The
camera decides which dependent on what glass is actually there..... 

( if they did anything else, Leica would need to keep 2 FW versions for 2
different cameras going for all the future FW updates.  Too much trouble.
Best ( cheaper, less resources, less trouble with customers) to carry both
and employ the correct one....)

I have no reason to believe that the newer FW is only used for the new
glass, and therefore, new FW= New Glass.   See below.....
But new glass does indicate new FW...... if it is V1.204 or later.

If you are looking for a way to tell if the glass has been replaced, at this
point in time, there is no way to tell......  at least that has been
published....

Leica has not published FW V1.204 to the public. The current Leica M9 FW is
1.210.  I just looked it up.  It claims to only add FW for the 28mm f5.6
lens.
Apparently, for ALL M9 cameras.  So if you were to upgrade your FW to the
most current, then you would never be able to tell which glass is in
there..... the FW would be the same.....

Back to what I said.... the FW, if upgraded, would not tell you which glass.

There is 1 way to tell...... for sure..... Ask for the buyer to show you the
repair docs on the camera.  Easy, sure, cheap.

Frank Filippone

Red735i at verizon.net


-----Original Message-----
From: LUG [mailto:lug-bounces+red735i=verizon.net at leica-users.org] On 
Behalf
Of RicCarter
Sent: Friday, August 25, 2017 5:10 PM
To: Leica Users Group
Subject: Re: [Leica] Leica M9 CCD problem

may we assume that the firmware version number is an indicator of
sensor/cover glass repair/replacement?

ric