I've been running FW 4.25 for some time now, primarily because there wasn't any 
compelling reason for me to upgrade. However, this evening when I saw Wayne's 
announcement for 4.39 I thought I'd give it a try. Unfortunately, I ran into an 
unusual problem.

I've installed FW dozens of times over the past three years that I've had the 
K3, and never once saw a FW failure until this evening. The K3 Utility begins 
loading 4.39 MCU, and when it gets to the point at which the utility invokes an 
MCU reset, nothing happens and the K3 Utility loses communication with the K3. 
Manually placing the K3 into the MCU load mode and restarting the K3 Utility 
was required to re-enable communications. I ran the loader again, and it failed 
the same way. Next, I tried to load 4.25, and the entire process ran through to 
completion without a problem. But if I try to load any FW above 4.25, the 
process always fails the MCU load at the MCU reset stage.

My K3 is an early serial number (early 200's), has the KXV3, KRX3, KPA3, KAT3 
options, and I have the P3 (but no KPA500). I'm running the K3 Utility 1.4.4.25 
on Windows 7 with a "real" serial port.

Any ideas what might be wrong? 

Tnx,

Scott
N7NB

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