My E4433B came with an ancient firmware version B.02.24, so I decided to upgrade it to the latest version (via the 2-step process, with B.03.20 as an intermediate version).
That didn't work out as planned, and the generator now throws up a number of errors:
ERROR: 617, Configuration Error
Installed option board not supported
Illegal combination of installed option boards.
The "Installed board Information" shows:
RF OUTPUT E4400-60003 EOF CONFIG ERROR
REFERENCE BOARD E4400-60009 EOF CONFIG ERROR
(other boards are OK)
My guess is I'm dealing with an early version of the ESG "B", with 2 boards derived from the "A" version.
The information screen originally showed:
Serial Number: US3723xxxx
Firmware Revision: B.02.24 (ARB ver 1.2.05)
The question is: since it was working fine with firmware version B.02.24, how can I go back to that?
The oldest downloadable version is B.03.02, which doesn't work for my generator.
Thanks in advance and best regards,