How to get calculator app back to normal?

Written by Admin | Last Updated: July 2026

Resetting a physical scientific or graphing calculator—such as models from Texas Instruments or Casio—back to its normal default operating mode requires utilizing built-in hardware reset commands or memory clear functions. On many scientific calculators, you can access the reset menu by pressing the shift or second function key followed by the mode or clear key, then selecting the option to reset all settings or clear memory. Alternatively, many calculators feature a small pinhole reset button on the back casing that can be pressed gently using a paperclip to reboot the processor and restore factory standard calculation modes, angle units like degrees, and default display formats instantly.

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