Tutorial for Users » hp 10bII - Resetting

hp 10bII - Resetting

At times, the hp 10 bii calculator may get locked up or not respond correctly. The hp 10bii calculator may require a reset for a variety of reasons. Resetting the calculator will erase the memory and restore the calculator’s defaults. For this reason, it is important that you back up any critical data before resetting.

Resetting the hp 10bII calculator using the keyboard

To completely reset the calculator and erase all user memory, follow the procedure below.

  • Press and hold [ON]. Press and hold the first key from the left ([N]) and the first key from the right ([FV]) on the top row.
  • Release all three keys at the same time.
  • The calculator will go blank, and then display "CORP HP 2000."
  • The message will disappear and the calculator will display "ALL CLEAR."
  • Press the [ON] key to clear the message.

Resetting the hp 10bII calculator using a paperclip

To halt the calculator and reset the keyboard, follow the procedure below.

  • Turn the calculator over and remove the battery door.
  • Insert a paperclip into the small round hole located between the batteries. Insert the paperclip as far as it will go.
  • Hold for one second then remove the clip.
  • Press the [ON] key.

If the calculator is still not responding, try one of the other methods.

Resetting to drain the capacitor. To drain the capacitor on the hp 10bII calculator, follow the procedure below.

  • Remove the batteries.
  • Place a coin in each battery hole.
  • Press the coin down and towards the top of the calculator, and hold for five (5) seconds.
  • Remove the coin , and put the batteries back in the calculator. The "ALL CLEAR" message will be displayed. Press the [ON] key to clear the message.

Updated On: 16.12.19

  1. On 24-Jul-2018, Nancykolleen@amail.com wrote: 
    I have tried all reset options for the calculator but it still ives the wrong answer for a FV calculation. What do I do now?
    Your reply to Nancykolleen@amail.com

  2. On 08-Jun-2018, Arsh wrote: 
    my calculator is showing wrong answers. please resolve my problem its urgent.
    Your reply to Arsh

  3. On 14-May-2018, Karabo wrote: 
    HP 10BII displays ICC when I switch it on. I have done key combo, money clip and coins to reset, still can’t use it. Please help
    Your reply to Karabo

  4. On 04-Feb-2018, Arsh wrote: 
    Hi I am entering this sequence 1151.65 PMT 60 INPUT Ammort === it’s giving me 69,099.00 instead of 161,706.07
    Your reply to Arsh

  5. On 04-Nov-2017, Tshilidzi wrote: 
    My calculator displays 3 zeros and the downward and upward sign on the screen. Thats all it displays, the bottons are not working. I tried everything in terms of resetting it nothing works help.
    Your reply to Tshilidzi
    • On 08-Apr-2018, Tcj replied: 
      can i know did you solve this problem?
      Your reply to Tcj

  6. On 17-Sep-2017, JordiP wrote: 
    Hi. After three or four years without batteries, I replaced them. Then, my HP-10B appeared dead. I followed the restoration process: finally the message ALL Clr appeared, but the machine did no operate at all. I performed the selfverification routine without success: at the fourth or fifth button appears the message 10 - Fail 8. Then I need to shortcircuit the batteries contacts to reset. Otherwise, the machine rests as dead. Where can I send the calculator (in Spain) to technical treatment? Thks a lot.
    Your reply to JordiP

  7. On 06-Aug-2017, Innocentia wrote: 
    My Hp10bll+calculator first showed a battery sign with a small mark inside I assumed it meant low but I haven't bought new ones, few days down the battery sign disappeared
    Now if I press a zero it shuts down what am I supposed to do?
    Your reply to Innocentia

  8. On 18-Jul-2017, Shini wrote: 
    why i didint get correct answer whenever do IRR and NPV question??
    Your reply to Shini

  9. On 22-Apr-2017, Thomas wrote: 
    Every time i press the I/YR button my calc. goes off. I did all the the reset methods, is there any known reason for this problem?
    Your reply to Thomas

  10. On 30-Mar-2017, Wiseman wrote: 
    I have tried many times to calculate time value of money it does'nt give the correct answer.
    Your reply to Wiseman

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