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ROM, Software version on HP 12C
04-21-2022, 10:53 AM (This post was last modified: 04-21-2022 10:54 AM by HP-12C.)
Post: #1
ROM, Software version on HP 12C
Hi

I was wondering if there is any way to tell, maybe a keyboard command? Which ROM, Software version a 12C is running?

Or would you need to open the unit and look at the chips?

Thanks in advance
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04-21-2022, 10:03 PM
Post: #2
RE: ROM, Software version on HP 12C
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
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04-21-2022, 10:18 PM
Post: #3
RE: ROM, Software version on HP 12C
That's just what I was after, thank you so much.
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04-23-2022, 07:35 AM
Post: #4
RE: ROM, Software version on HP 12C
The latest unit I have opened (of "plain" HP12c) shows 2015-1-30 as firmware date. I received it end of February as soon as Moravia got it from production. Made in the Philippines, not China.

It is possible to update firmware through the Pogo connector. I have one such cable but I have been looking to get more and the connector does not appear in any electronics distributor I know of.
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04-23-2022, 07:42 AM
Post: #5
RE: ROM, Software version on HP 12C
By the way, the latest HP-12c+.bin file I found is from 2011. Installing it would mean rolling back several versions!
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04-23-2022, 07:52 AM (This post was last modified: 04-23-2022 07:59 AM by Didier Lachieze.)
Post: #6
RE: ROM, Software version on HP 12C
(04-23-2022 07:42 AM)Divasson Wrote:  By the way, the latest HP-12c+.bin file I found is from 2011. Installing it would mean rolling back several versions!

And it may not work on the recent 12Cs which are using a different CPU since 2015 as listed in this thread (12C+ v1 vs. 12C+ v2).

Also the interface of the I/O connector changed from serial to USB between the v1 and the v2.
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