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Took a battery out, put it back in and it wouldn't turn on.

I took a battery out of my TI-81 that I recently bought on eBay, and as soon as I put it back in, the calculator would not turn on. It had been working perfectly fine right before then. I don't know if anyone will be able to help, but I'd be extremely grateful if someone could. Thanks in advance. - Jeff

Posted by Jeffrey Vos on

  • Anonymous May 19, 2009

    I have the same problem- When I try calculator for the first time it works well, but after some time I cannot turn it on. I replaced batteries but It doesnt help.


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  • 35 Answers

Try replacing both the AAA batteries and the back-up batteries. This should probably fix the problem.

Posted on Aug 27, 2007

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Solution that worked for me, taken from "Ti-89 titanium wont turn off":
Best Solution posted on Mar 05, 2008 Guest
Rank: Apprentice
Rating: 0%, 0 votes
I was able to fix the problem nut it requires several steps and only offers a temporary fix (untill the calculator is reset then it needs to be done again).
1. Press F5, then Dimond (symbol on buttion) then "Clear"
2. Press "alpha" then "S"
3. Press "0" dont mess with anything else here
4. Press "2nd" then "Quit"
Now you can turn it off but are missing the bottom text (rad,auto, etc...) to fix
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