On 4/5/2010 9:31 AM, johngalloway wrote:

However another possible cause is a flat security memory backup
battery. That's what caused my most recent security fail - this time
with a 302 DDV - and when I took advice (identity withheld for obvious
reasons) about having the flash upgrade done to the unit at the same
time as the battery replacement/re-seal I was told that:

"the original chips used became obsolete so an almost direct
equivalent has been cobbled onto the original board in the last 2
years production. There were then some timing issues, but Phil
Schlosser did some consultation and sorted out the problem. It turned
out that the timing had always been marginal, so there was a software
update that makes both old and new memory chips more reliable. The
original ones do not need the odd hard-wired jumpers to make them work
on the pcb. There is no difference in functionality between the
original and replacement memories, and it is believed by the design
team that the ones the unit was designed around are more reliable.
(The new ones have in principle more memory, but there is not the
control available to use it)."

I can't vouch this but I didn't get the flash changed on the second
unit.

John Galloway


Has CAI released this software update? My 302 is 4 years old, and was
at CAI two years ago for a repair (just a few weeks before Gary K left).
Nothing was said about the possibility of a software upgrade. The
unit has had a security failure since then.

I could be wrong, but I thought Phil Schlosser hadn't been involved with
CAI for years.