HP Graphing Calculators » HP 50g » HP 50g Factory Reset

HP 50g Factory Reset

If the settings are too confusing, it is always possible to do a full reset of the calculator by pushing an unfolded paper clip into the RESET hole at the back of the calculator.  The calculator is reset but the contents of memory are retained, only the stack is cleared.

Alternatively, you could perform a reset - Press and hold the top left and right keys then the [ON] button, the 50g beeps and asks whether the user wants to try to recover the contents of memory. Press any key once and followed by answering NO to this question means that the calculator will be completely reset and everything will be deleted, bringing the calculator back to its state as new.

Another method is to remove all the batteries (4 AA batteries and the CR2032 cell) for about 15 minutes.  Replace the batteries, the 50g will boot up.   The 50g system clock would reset to factory default setting of 12/30/02.

Updated On: 08.06.28

  1. On 02-May-2015, Anonymous wrote: 
    push a,f,on at the same time
    Your reply to Anonymous

  2. On 16-Jan-2013, Anonymous wrote: 
    hi, the method above is NOT causing a factory reset, All Libraries in the Flash will be untouched. I have no information how to really do a full reset and bring the HP50g back into a "virgin" state
    Your reply to Anonymous
    • On 17-Jan-2013, Anonymous replied: 
      One way could be to re-flash the rom...
      http://www.educalc.net/284489.page
      Your reply to Anonymous
    • On 20-Jan-2014, Bartdb replied: 
      Hi, you are quite correct. Much like any rebooting/resetting/power removal will not delete files on a hard drive of a PC, the Flash will not be cleared by any such methods.
      First go to (whiteshift) Files, select "2: FLASH" press OK. Now delete (purge) all files EXCEPT L226, L227 & L229 (periodic table and equation libraries). Then do the ON-F1-F6 reset and it should be in the "original" state.
      Your reply to Bartdb
      • On 04-Nov-2015, Rob Clements replied: 
        Did as you suggested and fully restored HP50g functionality - many thanks! (Reply)

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