Question about Texas Instruments TI-84 Plus Calculator

1 Answer

Calculator will not turn on

My calculator will not turn on at all. I changed the batteries and nothing happened.

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  • 4 more comments 
  • Anonymous Nov 27, 2007

    wont turn on

  • Anonymous Nov 28, 2007

    I was running a program, and shut off my TI-84. It will not turn back on. I pulled all of the batteries, even the little one, just to reset it. It still will not turn on. Yes, I tried new batteries too.

  • Lynn f Dec 12, 2007

    Calculator will not turn on all at. We have changed the batteries and put in fresh batteries, still the screen stays completely blank.

  • a12835 Dec 17, 2007

    My calculator just shut off one day without a low battery message. The AAA batteries had some white residue on them. I cleaned out the residue and replaced all 4 AAA batteries but calculator will not turn on at all. I tried the solutions offered here (remove 1 AAA battery hold "DEL" key while replacing etc) but they did not work.

  • ej90143 Jan 24, 2008

    thank you your first suggestion worked i am very grateful 

  • shortypinay8 Dec 10, 2008

    My calculator won't turn on and when it is on it is very slow and i already replaced the batteries.

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  • 6 Answers

Try the following

1) Remove one of the AAA batteries, hold down on the DEL key while reinserting the AAA battery. The handheld might display Waiting…Please install calculator software now. Ignore this message. Remove and reinstall one of the AAA batteries again This time, do not hold down the DEL key.
2) Remove one of the AAA batteries, press and hold the [on] key for 10 seconds, release, replace the battery, then turn the unit on. Adjust the contrast.
3) Remove the AAA batteries for three hours. After the three-hour period, reinsert the batteries and turn the handheld on. Adjust the contrast if necessary.

If needed, reinstall OS by downloading the OS from the TI site and ....
On your computer, choose Start, Programs, TI Tools, TI Connect, TI OS Downloader.

(I am not the one who came up with this answer, but found it on an other site. If this doesn't work, please let me know)

Gr Marijn

Posted on Nov 29, 2007

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TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

If that doesn't do anything, append a comment to this post and we'll go on to the next step.

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