http://beyondmeasure.rigoltech.com/acton/fs/blocks/showLandingPage/a/1579/p/p-0019/t/page/fm/0
This page points to a document that says last firmware is Version?00.04.03.02.03 Date?2015-10-20
My 1054Z came today and it says : Software Version 00.04.03.SP2
Which one is the latest ? Is it worth to update ( downgrade ?) to 00.04.03.02.03 ...?
Anyhow...Riglol did his duty...
A.
00.04.03.02.03
is the latest user-installable firmware version (the scope calls this "software version"). In the normal (partial) System Info screen this version is identified as
Software Version 00.04.03.SP2
You can display the _complete_ System Info screen by pressing the Trigger section buttons (extreme right hand side) Menu-Menu-Force-Menu very fast, then Utility-System-System Info. If you don't see the complete system info screen, keep trying, you might not be pressing the Menu-Menu-Force-Menu sequence fast enough.
It is not possible, as far as I know, to "downgrade" or roll back to an earlier firmware (software) version once a later version is installed.
Another way to tell if you have the 00.04.03.02.03 firmware installed is if you have the Pulses and Edges counters in the Horizontal Measurements menus, and the "Pluses" spelling error when you display these as Measurements.