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Jeffrey Vos Posted on Feb 10, 2007

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

  • 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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  • Posted on Aug 27, 2007
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Try replacing both the AAA batteries and the back-up batteries. This should probably fix the problem.

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