Problem Solved – thanks to some very good documentation provided in this forum by others who have fought these issues before.
Initially, I followed the Factory Restore procedure as described in:
http://forum.universal-devices.com/viewtopic.php?t=1765
Unfortunately, my laptop does not have a serial port, so I had to scrounge up an old one for the serial work described in the link above. That resolved the flashing red LED error, until I forced the same problem to happen again as will be described below. Argh.
The procedure called for me to launch http://www.universal-devices.com/99i, which I did, but this once again caused the red LED error to occur. Double Argh.
Since doing successful updates on the ISY-99i earlier this week, I had changed my antivirus package to AVG 8 and did some digging on this forum to find:
http://forum.universal-devices.com/view ... hlight=avg
So, I turned off the Web Protection in AVG as described, ran the FR procedure again, was able to re-install 2.6.12, restore my backed up configuration (making sure I cleared the Java cache between each restart of the web page), and am finally back in operation. Whu hoo!
It seems that the AVG 8 package that I installed earlier this week did indeed “brick†my ISY just as author gviliunas described in his post.
Here’s the sequence of restoration that I followed:
Turn off Web Protection in AVG
HyperTerminal to ISY serial port
Login using my saved username/PW.
Issue FR command for factory reset. ISY reboots.
Connect to ISY99i via Ethernet
Clear Java cache
Launch www.universal-devices.com/99i. Login using admin/admin.
Re-install 6.2.12. ISY reboots.
Clear Java cache
Launch www.universal-devices.com/99i
Login using previously saved username/PW.
Restore backed up ISY configuration (Sure glad I saved that last working config!). ISY reboots.
HyperTerminal to ISY serial port
Login using my saved username/PW.
Issue CT command to restore desired IP settings. ISY reboots.
Clear Java cache
System is back in operation as before being clobbered due to the AVG setup.
I supposed I should have anticipated a problem was about to occur; prior to the ISY erroring out, I had noticed a couple of “funnies†in its operation, such as device notes that would not save, and programs that after the save command was issued, still reflected a not-saved status. Anyway, this ISY-99i is back operation thanks to the info others provided in this forum. Thanks!