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- HP 10bII+ IRR issue

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01-28-2024 10:37 AM
I own a HP 10bii+ financial calculator that reads "COPr HP 2010" error message during multiple commands. When I press shift>ON/OFF. It reads this message instead of turning off. The calculator also reads this message when attempting to calculate I/YR. For example, this message will read when I input BEG, N=5, PV=334,883, PMT=-75,000 FV=0.
This issue also causes my calculator to automatically change from 1 p/yr to 12 p/yr each time.
Does my calculator need repair? Does anybody know how to fix this.
01-28-2024 02:07 PM
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Therefore, this topic is being locked. If you would like help resetting the password on your product, please Contact HP support in your region.