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Worked fine, thank you very much!
Don
10/9/2008 12:44:57 PM - US
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My 12c stopped operating, won´t turn on. I replaced 1 battery of CR2032 and still won´t turn on. Tried jumping contacts and still won´t turn on. HELP!!!!!
Russell
9/17/2008 2:40:36 PM - US
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HI, What is Capacitor discharge and how do u make this trick work, strugling with clearing functions or something else.
Thank you, Namak
In reply to Jeff:
Thank you very much. My 12c has been around longer than my kids and twice as useful. I was concerned I would have to go out and get a new calculator that would only be half as good.
Capacitor discharge did the trick.
namak
7/23/2008 10:07:24 AM - US
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Thank you very much. My 12c has been around longer than my kids and twice as useful. I was concerned I would have to go out and get a new calculator that would only be half as good.
Capacitor discharge did the trick.
Jeff
5/20/2008 9:57:04 AM - US
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Hi Michael, check out the following link...
Commas to Point.
In reply to Michael Masci:
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I have the commas instead of the decimal. How do I get rid of the commas? Michael Masci
Peter Tong
3/10/2008 9:57:25 AM - SG
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I have the commas instead of the decimal. How do I get rid of the commas? Michael Masci
In reply to Mike McHale:
I have the commas instead of the decimal. How do I get rid of the commas? Alice aliceruiz07@yahoo.com
Michael Masci
3/10/2008 9:54:38 AM - SG
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Hi Bill, sounded like the LCD is damaged. I don´t think it can be repaired as the LCD panel is soldered to the main logic board.
In reply to Bill:
I only found 1 battery. I tried reset but was not sure where terminals were. Reset did not fix problem. My problem is that when I enter .80 the display shows 8.0. Any ideas
Bill Campbell
Peter Tong
3/10/2008 9:53:53 AM - SG
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I only found 1 battery. I tried reset but was not sure where terminals were. Reset did not fix problem. My problem is that when I enter .80 the display shows 8.0. Any ideas
Bill Campbell
Bill
3/6/2008 7:23:33 AM - US
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Thank you very much! After replacing batteries the display showed something like arabic script and wouldn´t function at all. Discharging the capacitor worked like a dream. And to think I was ready to toss the 12C I love so much.
Jim
2/6/2008 3:20:36 PM - CA
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awesome, thanks so much!
Anonymous
12/6/2007 3:22:03 PM - US
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You guys are wonderful! Please keep the flag flying.
Ayo Fadipe
11/25/2007 9:48:23 PM - US
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Thank you so much for this page. I´ve used a HP12c for years but sometimes forget the basics. This is great
Pam
10/23/2007 11:25:15 AM - US
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Thanks!
Thought I would have to buy a new Calculator.
The paperclip reset did the trick.
Bruce
10/4/2007 8:45:35 AM - US
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Just did the paperclip reset; it worked like a charm. Thanks!
ehennigan
9/24/2007 7:35:15 PM - US
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I have been on the site...I reset it, but I still have RPN at the bottom. How do I get rid of it?
Anonymous
9/24/2007 2:37:55 PM - US
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Hi Guys,
This may be a stupid question, but what is the safest and most reliable way to get that battery out? I tried pulling it out with my fingernails, but was unable to do so, and am reluctant to use more tools or force for fear of damaging the calculator. Do I have to press down on some side or what?
kong
9/5/2007 4:17:15 PM - US
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This site was great. I could not remove a comma to replace with decimal. With the search function, we received the instructions with minutes and was able to fix. I thought I needed new batteries.
Diane
6/4/2007 2:30:11 PM - US
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Man I love the internet! Thought my 12c had finally bought the farm!
Thank you!
Peter
5/16/2007 9:31:41 PM - US
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Thank you this worked out quite well! Fabulous paperclip resetting
Anonymous
5/8/2007 7:02:48 AM - NL
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Hi Michael, see the following link.
http://www.educalc.net/144880.page.
In reply to Michael Masci:
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I have the commas instead of the decimal. How do I get rid of the commas? Michael Masci
Peter Tong
4/28/2007 9:33:34 AM - SG
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I couldn´t get the Calendar function D.MY out of the register. I perform the reset function and it worked. Thanks
Anonymous
2/3/2007 5:36:23 AM - US
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Thanks. i was about to buy a new calculator. I am glad this was available.
josh
9/19/2006 2:35:01 AM - US
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I have the commas instead of the decimal. How do I get rid of the commas? Alice aliceruiz07@yahoo.com
In reply to Mike McHale:
I had the commas where the dots where and the dots where the commas were...very disconserting. Thanks for the help
Mike McHale
7/27/2006 6:08:36 AM - US
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Thank you so much for your website, I took my HP with me in my purse this weekend adn this morning it had all kinds of errors, with your website I was able to fix it. Thanks so much
avera
6/5/2006 11:37:13 PM - US
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Push the yellow function key and the number key corresponding to the number of places you want to the right of the decimal at the same time.
In reply to NS:
how do you set the decimal point to read 3 digits to the right?
Tom
4/27/2006 11:21:57 AM - US
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press f then press 3
In reply to NS:
how do you set the decimal point to read 3 digits to the right?
John
11/24/2005 2:09:43 PM - US
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Brilliant!
John
11/24/2005 2:06:34 PM - US
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worked like a charm! Thanks so much!
Beth
11/14/2005 9:12:03 AM - US
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Works great, had to do the paperclip trick and now works again!
Lambretta
11/9/2005 12:32:04 PM - AU
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Thank you for having the online help manual available.. What a great help!
Thank you...
Allen
10/29/2005 8:50:34 PM - US
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flashing asterix flashing lower left hand corner
In reply to jason:
I Have a little asterix flashing in the corner of my hp12c and have completed the reset but the flashing asterix is still there. is the calculator broken?
irv
6/30/2005 1:55:12 AM - US
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Great !! Work successfully !!Thanks !
Celso - BRASIL
5/25/2005 11:33:53 PM - BR
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replace batteries.
In reply to jason:
I Have a little asterix flashing in the corner of my hp12c and have completed the reset but the flashing asterix is still there. is the calculator broken?
Anonymous
3/23/2005 4:49:33 AM - US
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how do you set the decimal point to read 3 digits to the right?
NS
3/9/2005 6:25:13 AM - US
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The procedure to reset my 12C HP worked perfect.
Thank´s you.
In reply to Joan:
Thank you, couldn´t find my "book-guide"
Hugo Soto M
2/8/2005 3:29:54 AM - CL
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I had the commas where the dots where and the dots where the commas were...very disconserting. Thanks for the help
Mike McHale
12/8/2004 4:05:27 AM - US
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I Have a little asterix flashing in the corner of my hp12c and have completed the reset but the flashing asterix is still there. is the calculator broken?
jason
11/10/2004 5:53:28 AM - AU
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THANK YOU IT WORKS!!
GARDESSON@AOL.COM
11/2/2004 1:47:30 AM - US
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I am beside myself. My 12c had the comma where the period should go. My coworkers said to chuck her out. I tried the paper clip method and she is as good as new.
Anonymous
7/28/2004 3:54:33 AM - US
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Hello:
My calculator was in a drawer for almost 2 yrs.Now that I want to use it for my work, it does not turn on. I tried to reset it with a paper clip and add new batteries and still does not work.
What should I do?
Thanks for your assistance
Jose Valdivia
7/8/2004 11:49:46 PM - FR
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Thank you, couldn´t find my "book-guide"
Joan
6/16/2004 11:03:21 PM - US
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I almost threw the calculator away! I had the back off and was was trying to reseat the LCD screen when I had the inspiration to do a Google search for for "HP12 reset". BINGO, all is well!
Eric
5/20/2004 3:01:25 AM - US
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I was on hold with HP techs when i did a Google search for ´HP 12C battery.´ This site came up first. Scanning it, I decided to hang up the phone.
I had a low battery notice (flashing asterisk) and replaced the batteries, however, the calculator didn´t work. Nothing came on the screen.
It took me a while to jimmy the paper clip for it to fit inside the spring and the opposite metal side. Lo and behold, the remedy worked. Thank you very much!
Regards,
Michael Reid
1/11/2004 11:49:05 PM - US
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The procedure worked beautifully! THANKS!!!
Nick Yaremko
12/18/2003 11:58:12 PM - US
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