302 security failures

On Apr 5, 11:28*am, Darryl Ramm wrote:
On Apr 5, 7:03*am, T8 wrote:

Anyone else got one, lately?

And yes, I do have the flash memory upgrade. *Have flown the ship
about a hundred hours since the upgrade, this is the first such
problem (yesterday). *Didn't think to check to see if the memory just
'rolled over', but it is probably close, IIRC 302 holds right around a
hundred hours of flight logs at 4sec interval.

-T8

Could you clarify this is the security fail on download with a
Cambridge PDA utility software where the hardware/battery seal is
known to be good but the IGC file is invalid. Have you tried a non-
Cambridge utility like ConnectMe, that has never helped me when this
has happened but some people believe it helps with this sometimes.

I have ran my 302 at 1 sec sample rate since getting one of the early
flash memory upgrades, easilly enough to wrap memory, but I dont'
think that proves anything. I had only one bad download/security fail
in past use of that 302.

Darryl

More data:

302 has good seal as displayed on Screen # 8 (or there about) --
verified this after the failed d/l.

Flight logs are being transferred by Cambridge utility to a SD card on
an Ipaq 3970. The Cambridge utility reports three things at the end
of the download -- paraphrasing: "Flight log integrity Okay /
Signature Okay / Security Fail". I've 'verified' the downloaded igc
file with valicam2 and get the same three messages on yesterday's
file.

I've never used another utility to transfer logs -- the CAI utility
works fine.

-Evan Ludeman / T8