ROM, Software version on HP 12C

[Didier Lachieze]

On 12C units with two CR2032 batteries the self test will provide the ROM date/version and the copyright date as explained on HPSupport, but for other versions of the 12C I don’t think there is a way of finding the ROM version.

My 12C Platinum reports VEr 02 C 2004 hP
My 12C 30th Anniversary Edition reports 2009-07-02 C 2008 hP
My 15C Limited Edition reports 2011-04-15 C 2008 hP