If your HP calculator is acting up or you need to clear its memory, resetting it is often the solution. Here’s a quick guide on how to reset your HP calculator:

Resetting the calculator using the keyboard

Follow these steps to reset your HP calculator using the keyboard:

Press ON to turn off the calculator
Press and hold [ – ]
Press and release ON
Release [ – ]
The screen will display “Pr Error”
The calculator will reset to the default settings and the memory will be erased

This process will clear the calculator’s memory and restore it to its factory settings. If you have any important data stored, be sure to back it up first.

Alternative Reset Methods

Depending on your specific HP calculator model, there may be other reset methods available:

For some models, you can remove the batteries, wait a few seconds, then reinsert them to reset
Newer HP 12C models have a small reset button in the battery compartment that can be pressed with a paperclip
Consult your calculator’s manual for model-specific reset instructions

If resetting your HP calculator doesn’t resolve the issue, there may be a more serious hardware problem. In that case, contact HP support for further assistance.

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