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HP Recommended
12 c
macOS 10.12 Sierra
Good morning:
I have the 12C application on my iPhone X and it is not functioning. When you press any key I get a number with a negative sign on the left side and a different number on the right side with the word prgm.
The screen dies not rotate and as you press different keys nothing works. How can I fix the issue? Are you Worki g on a new version?
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HP Recommended

Hi!, @Sotico1965 :


Try, with this version of HP-12C (not free), from ...

Kind Regards !.
Have a nice day !.
@Maké (Technical Advisor Premium - HP Program Top Contributor).
Provost in HP Spanish Public Forum ...
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Message 3 of 3
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It seems you are in Programming Mode.


Press yellow " f " key followed by "P/R" (on the R/S key). This should take you to normal calculator operation.



calculator enthusiast
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