Question about Texas Instruments TI-89 Calculator

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Numerical keys are not working

I have had this TI 89 for over 8 years. It was in dis-use for the past year, sitting on my bookshelf. When I tried to use it, I found the numerical numbers 1, 2 and 3 were not working. Everything else on the calculator works just fine, but those 3 buttons won't work when I press them. I have replaced the batteries, the calculator was in its case, no water got to it. I don't know how I can go about having it fixed. Any help?

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I have the answer! GET A NEW CALCULATER...a calculator i don't think should last 8 years if u use it often...

Posted on Feb 01, 2009

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For the TI-89 Family, TI-92 Family, and Voyage™ 200:
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  2. Users of the TI-89 Titanium or Voyage 200 should see the following case before performing the following reset procedure to prevent the loss of valuable Apps.
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To reinstall the Calculator's operating system, take a look at the following TI site.

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I would hunt around on the TI knowledge base to see if there are some more useful suggestions if nothing above works. If I find any more info that could be useful I will post it.

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