How do you upgrade older than V2.30 firmware in the AT3600 and Ati?
The standard upgrade will not work with firmware v2.30 or lower because the messages required for performing standard upgrades were not implemented till v2.31. To upgrade this older firmware you will need to use a fully customized file (AT36****.abs) available from us upon request.
Be sure to supply the full AT3600 Serial number TC**/****
This method will also fix units that power up with messages:
"Main operation suspended"