Question about Texas Instruments TI-83 Plus Calculator

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Parts of the calc never turns on in the screen..

Whenever I turn on my TI-83 there are some parts in the screen that wont turn on. For example, if I put in 4+4, the answer comes out in the right side as 4. But there is a vertical line that blanks out that line. So the middle of the 4 is missing and there is a horizontal line so I can't even tell what that number is. Can someone help me?

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  • jkcarter May 27, 2008

    I've had the same problem with both my old TI-85 and TI-89. Could someone please help with this? Is there a way to fix it?

  • lucee25 Nov 30, 2008

    Several vertical lines of pixels never turn on for me. Sometimes, when I keep the screen on for an extended period of time, some of the lines come back, but this is not an adequate solution.

  • ria ria Dec 02, 2008

    there are vertical lines that show up on mine and when you clear the screen some go away and new ones appear. what happened to my calculator? and can i fix it?

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What are the parts of the calc screen?

Posted on Nov 20, 2008

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Hello,
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"Reflashing the OS is probably the thing to do now. I think there's some trick that throws the calc into OS receiving mode. Hold down DEL while putting the batteries in? I don't remember if that's it. Go to 1-800-TI-CARES/ti-cares@ti.com if you need specifics on getting the calc to take an OS upload given the state it's in."

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