If your financial calculator becomes unresponsive or locked, you may need to reset it. This will erase the calculator's memory and restore its default settings. HP and Texas Instruments manufacture the two most commonly used financial calculators in the industry. Each brand can be reset both manually and by using the keypad.
Instructions
Reset an HP Calculator (HP 10bII) Using the Keypad
1. Turn on your calculator. Press and hold "ON", "N" (located in the top left corner of the keypad) and "FV" (located in the top right corner) at the same time.
2. Release the three keys simultaneously. The screen will turn blank and then display the words "CORP HP 2000." The message will then be replaced with the words "ALL CLEAR" when the calculator has successfully been reset.
3. Press "ON" to clear the screen and continue using the calculator.
Reset an HP Calculator (HP 10bll) Manually
4. Flip the calculator face down. Remove the battery door.
5. Locate the small hole between the two batteries. Insert a straightened paper clip as far as possible into the hole to push the reset button.
6. Hold the reset button down for one second. Remove the paper clip and press the "ON" key.
Reset a Texas Instruments Calculator (BA II) Using the Keypad
7. Press the "2ND" button, located on the second row of keys. The word "2ND" will be displayed on the screen when the function is active.
8. Press the "+/-" button. The screen will then show "RST?" to ask if you want to reset the calculator.
9. Press the "ENTER" button (located on the first row of keys) to confirm you wish to reset. "RST 0.0" will be displayed when the calculator has been successfully reset.
Reset a Texas Instruments Calculator (BA II) Manually
10. Turn the calculator on. Locate the small hole labeled with the word "RESET" on the back of the calculator.
11. Insert a straightened paper clip into the hole.
12. Turn the calculator over to view the screen. If it has been successfully reset, the screen will read "RST 0.00."