Question about Texas Instruments TI-83 Plus Calculator

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TI-83plus was working with this calculator yesterday. Today it wont turn on. Put in a new set of batteries and still nothing. I am in the middle of a college class and ready for exam and I need to get this working.

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Firstly check the battery compartment for any sign that the old batteries have leaked. Look for signs of corrosion, white powdery deposits on any of the contacts? You can clean the contacts with a little alcohol or a light abrasive. Also check they are in the correct way round!! Next you can reset the calculator as described on page 740 of the manual which you can download below: http://education.ti.com/guidebooks/graphing/83p/83m$book-eng.pdf The full reset of the calculator is as per this diagram:

Posted on Aug 05, 2007

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1 Answer

My ti 83plus will not power on?


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 this doesn't do it, reply to this post and we'll go on to the next step.

Aug 27, 2012 | Texas Instruments TI-83 Plus Calculator

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My calculator is not turning on. I have bought new battery and it is still not working. can you please tell me what i should do? i have a TI-83Plus


Having gone over a month without a reply to my query, I assume the suggested contrast adjustment solved the problem.

Sep 14, 2011 | Texas Instruments TI-83 Plus Calculator

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I replaced all the batteries on my TI-83plus and it will not turn on. Is there anything else I can do?


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.

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Hi, i've updated yesterday my nspire cas calculator with the new 3.0 OS and everithing was ok, but today i had turn it on and my nspire crashed in the middle of the load bar with a exclamation triangle...


There is a major bug in the 3.0 OS which does permanently brick TI-Nspire calculators on the 2nd booting of the new OS.

Check here: http://www.omnimaga.org/index.php?topic=7943.0


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My calculator wont turn on. Even though i put new batteries in correctly. How can I turn it on? Nothing happens when I press the ON button.


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. Does it?

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Ti 85 wont turn on, batts good, tried to adj contrast , still nothing


Are you sure the batteries are in correctly? They alternate negative/positive, positive/ negative and so on. The first time I put the batteries in, I didn't have them in correctly. You tried adjusting the contrast. Just try adjusting upwards. Sometimes it takes a little for The Ti 85 to come on or adjust right. The Ti85 is an old calculator and, may not work any more. I had my Ti89 for almost 20 years so, they are pretty reliable. If nothing has worked take out all the batteries including the small one in the back. Texas Instruments say's " leave them out for 5 to 10 minutes." I had to leave mine out for over a 1/2 day to get it to work.

Here is the battery reset procedure for the Ti 85.

Try a new set of AAA batteries.
  1. Adjust the contrast by pressing and releasing the [2nd] key followed by pressing and releasing
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  2. Remove one of the AAA batteries. Press and hold the [ON] key for 20 seconds. Reinsert the
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  3. Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute

  4. period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary.

Just keep trying. Sometimes they can be a pain.

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Could be that your calculator needs to be reset. Take out the internal battery that is located in a tiny door with a screw right above the 4 AAA batteries. Leave this out for about 8 hours and put it back in. Put in the AAA batteries and the calculator will be reset and may work.

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No power ti 83plus


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 at all. 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.

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Remove the internal battery for two minutes to reset the calculator to factory settings.

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i found this somewhere else on this website
and it worked for my broken ti-83plus which had same odd startup symptoms.

Remove one of the AAA batteries.
Press and hold CLEAR while reinstalling the AAA battery.
Continue holding CLEAR button and press ON.
Release buttons and press CLEAR again.
Calculator should be normal mode now. ;0)

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