06-21-2018, 09:56 AM
Got this HP-12C+ since 2016 this work all good no problem until recently I put a Prime Number finder program that let it keep running with a pause for each prime it find.
I let it run for about 45 minutes straight then the display show the digits fainted so I press any keys to stop the process then show "Pr Error" that's mean all my program is deleted.
I turn it off and back on and press f P/R the display shown blank nothing on the display. Turn on again now is normal I can do any calculations no problem but when go to Program mode the display will go blank.
I try the self-test and result return with "Error 9"
I checked the batteries both are good with a little bit above 3 Volt on both batteries.
With the self-test sometime will be able to go to program mode as normal. Put program in and run as normal but every once in a while you never know the Pr Error will show up and can not go in to Program Mode again.
To wrap this up: So is this not a good practice to do a long period looping program on Programmable Calculator?
Gamo
I let it run for about 45 minutes straight then the display show the digits fainted so I press any keys to stop the process then show "Pr Error" that's mean all my program is deleted.
I turn it off and back on and press f P/R the display shown blank nothing on the display. Turn on again now is normal I can do any calculations no problem but when go to Program mode the display will go blank.
I try the self-test and result return with "Error 9"
I checked the batteries both are good with a little bit above 3 Volt on both batteries.
With the self-test sometime will be able to go to program mode as normal. Put program in and run as normal but every once in a while you never know the Pr Error will show up and can not go in to Program Mode again.
To wrap this up: So is this not a good practice to do a long period looping program on Programmable Calculator?
Gamo