Question about Texas Instruments TI-83 Plus Calculator

3 Answers

Screen Gibberish My Ti-83+ is about 6 years old but not until a couple of days ago did this problem occur. I turned it on to find gibberish all over the screen. I pressed clear without any luck. I changed the batteries, cleared the ram, pulled all the batteries including the lcd and let it sit overnight, and updated the OS via another TI-83+. Nothing has worked so far. Any thoughts?

Posted by on

  • Anonymous Sep 04, 2008

    Ditto.  I have had this problem for months and I really don't want to buy a new calculator.

  • VT Hokie Sep 14, 2008

    Yeah, I ended up contacting TI and they sent me to their trouble shooting page which contained everything I had already done, clear the ram, reinstall the OS etc. They also mentioned that since my calculator was so old, they could not do anything for me. So I ended up just buying a new one. Thanks for all the input.


3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 149 Answers

You dropped your calculator one too many times, or the solder joints broke some other way. Get a soldering iron, liquid flux, and solder and resolder all of the chips on the mainboard.

Posted on Apr 27, 2011

  • Chris M. Apr 27, 2011

    Another common cause is the white flex cable connecting the LCD to the main board. Peel that off of the board (it isn't soldered), tin all of the pads and solder wires onto them in place of the flex cable. Try this first, since the cable is folded, and over time the connection breaks at the fold.


This is by no means an official opinion, but I'm almost 100% certain that this happens when memory on the calculator fries. When the processing chip tries to read information stored in memory telling it what to print on the screen, the memory returns incorrect values and as a result areas of the screen which are supposed to be empty have pixels filled in and vice-versa (depening on how much of the memory has failed).

This exact same problem happened on my laptop computer (with video memory) a couple of weeks ago and it turned out to be both a problem with the video memory failing, as well as the video interface on the mainboard.

Once again, I haven't called TI yet to confirm this, but I'm nearly 100% certain that this problem is caused by bad memory sectors.

TI MIGHT replace a calculator if it has this issue, or maybe repair it for less than the cost of buying a new one. I'm not sure yet; this problem just happened to me and tech support isn't open till monday.

Posted on Sep 06, 2008

Wow, I'm in the exact same situation. I've had my trusty TI for 6 years and now all of a sudden this gibberish is on the screen. You're right, there is absolutely nothing you can do to fix it. Guess we'll have to bite the bullet and buy a new one. 

Posted on Sep 05, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My Ti-83 will not turn on even after i replaced the batteries, does that mean it's completely dead? i have had it for 6 years

If you are careful with it you might make it last still longer. After changing batteries the calculator usually dims the screen so that you are not able to see much. To increase the contrast, press [2nd] key and release it. Then press the UpArrow and maintain pressure until the screen darkens to your liking. While pressing the UpArrow you might see at the top right corner the numbers changing (2, 3, 4 etc.)
If this procedure is unsuccessful, you might want to take a look at the electrical terminals (battery) and see if there are any traces of corrosion due to an acid leak from the old batteries. The terminals should be clean.

Aug 12, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

My TI-83 Plus calculator is just over 1 year old and does not power up. I have changed both the alkaline and the back up batteries with no success. Please advise.

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, please reply to this post and we can take it from there.

Nov 29, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

I have a TI-83 that hasn't been used for a couple of years. I replaced tha 4 AAA batteries, turned on the calculator, but the screen just displayed one horizontal black line. I couldn't get it to respond...

Hope is what keeps the world turning.
Clean the electrical terminals even if they seem shiny. Use a clean eraser tip of a pencil.

Insert the main batteries.
If you see the line again, press [CLEAR] to see if it disappears.
Try resetting the RAM by pressing [2nd][MEM][7:Reset][1:All Ram][2:Reset] [ENTER][ENTER].

If screen is too light or too dark, adjust the contrast:
Press [2nd] key and release it
Press and HOLD Arrow (UP to darken, or DOWN to lighten) the screen.

If that does not solve the problem you may have to force the calculator to boot up. Details are in the article . Read the part on Ti83Plus family.
The article contains links to additional articles.
Hope it helps.

Oct 29, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

Can't turn on my new TI-83 calculator

I cannot tell you why that happened (I am no prophet), I can just try to diagnose plausible causes. If it solves the problem, then my guess was good; if it does not then my diagnostics was wrong, and you should try other solutions.
My hunch is that the screen contrast has turned too light. The procedure to darken the screen is as follows.

1. Press the yellow [2nd] key and release it.
2. Press the [UpArrow] and release it.
3. Repeat Step 1 and Step 2 in sequence until the screen darkens, to your liking. You may have to repeat procedure several times. Main batteries must be good.

Hope it helps.

Sep 14, 2009 | HP 12c Calculator

1 Answer

TI-83 Plus Silver Edition problem

These instructions are from, and worked for me.

1) Take out one of the AAA batteries
2) Hold down the CLEAR button
3) Put the AAA battery back in while still holding down the CLEAR button
4) Let go of the CLEAR button and turn the calculator ON
5) Press CLEAR to get rid of the error message.

Then you should be good! All the applications on my calculator were still intact, so despite the error message, the RAM was never actually cleared.

Oct 20, 2008 | Texas Instruments TI-83 Plus Calculator

1 Answer

TI-83 Plus Silver Edition problem

Use a paperclip (tiny hole on back of caculator) and reset.


Sep 16, 2008 | Texas Instruments Office Equipment &...

1 Answer

No Power

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.

Sep 04, 2007 | Texas Instruments TI-83 Plus Silver...

2 Answers

My ti-83 plus has OS problem

That happened to me a few years ago - my friend tried to give me his operating system, and my calculator was all locked up like that for a while. There's some kind of reset code - pressing some buttons while putting a battery in - but it's been a while, so I don't remember which buttons.

Apr 15, 2007 | Texas Instruments TI-83 Plus Calculator

Not finding what you are looking for?
Texas Instruments TI-83 Plus Calculator Logo

713 people viewed this question

Ask a Question

Usually answered in minutes!

Top Texas Instruments Office Equipment & Supplies Experts


Level 3 Expert

98868 Answers


Level 3 Expert

7993 Answers

Stevan Milanovic

Level 2 Expert

251 Answers

Are you a Texas Instruments Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides