Question about Texas Instruments TI-89 Calculator

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Screen fully black

I was using my TI 89 Titanium when the screen suddenly started getting darker for no reason. I tried upping the contrast but it just got darker until the screen went fully black. It turns on and turns off, but the screen remains black whenever it is on.

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  • Anonymous Oct 21, 2008

    same problem... somene help!!!!

  • newny2584 Mar 30, 2009

    Whenever I turn on my 89, the screen is pitch black and I can't do anything. HELP!!!!!!

  • hickersoncor May 03, 2009

    One day my ti-89 suddenly got a black screen. If i can get into a program, say like a game, the game will play and i can see but the screen is kind of laggy. otherwise when i turn on the calculator it just displays the home screen for a second and then turns black. i don't think its a contrast problem, that doesn't make sense.

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Black-Screen/Black-Pixel Fix for TI-Calculator

This will erase all memory and reset defaults.

1. Remove 1 AAA Battery
2. Press and Hold 'ON' for 30 seconds
3. Replace AAA Battery
4. Adjust Contrast to appropriate level

If this fails, try again with ALL Batteries removed including
the backup Lithium Battery.

If all else fails, try the following reset procedure:

1. Remove ALL Batteries (inc. Backup)
2. Let Calculator sit with no batteries for 2~4 hours.
3. Hold 'ON' for 30 seconds.
4. Replace all the batteries (May be good idea to use new batteries
just in case old ones were dead)
5. Turn on Calculator
6. Change Contrast to appropriate level

- Remember to use correct batteries or calculator may not work. The
correct batteries are Alkaline, Rechargable Batteries are TOO WEAK,
Heavy Duty batteries are TOO STRONG.

Posted on Nov 19, 2008

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I had this problem and was able to fix it with the second key and down key. You have to push the second key after you push the down key each time otherwise it doesn't work

Posted on Sep 29, 2014

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I think that TI should promote a recall for this kind of problem that appears to be frequent.

Posted on Jul 31, 2013

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There could be a sticky button causing it? Please check all the buttons and make sure they are not in push position.
Also, please try to reinstall the OS and see

Posted on Oct 12, 2008

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1 Answer

The screen on my TI-89 Titanium turned blue after replacing batteries? How do I fix this? It turns on and off but does not respond to any other buttons.


If you cannot see anything on the screen, you may need to adjust the graphing TI 89 Titanium calculator contrast :

1.To darken the screen, press and release 2nd key, and then press and hold up-arrow key until the display is sufficiently dark.

2. To lighten the screen, press and release 2nd key, and then press and hold down-arrow key until the display is sufficiently light.

Sep 01, 2012 | Texas Instruments TI-89 Calculator

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I cant really read some of the options on the screen on my ti 89....the letters are so blurry......what can i do ?????


Hey shrestha,

I've never seen a calculator with display clarity problems.

The only option I could think to offer you is to attempt to adjust the contrast. However, I'm not sure whether or not your TI-89 actually has an option to change the contrast. Because I own a TI-89 Titanium - and although its a wonderful calculator - it does not allow the user to alter the darkness/brightness of the display.

Call Texas Instruments: 1-800-TI- CARES...They are pretty helpful with common questions like this.

Sayonara,



The Math Cheetah

Mar 13, 2011 | Texas Instruments TI-89 Calculator

1 Answer

I have a TI 89 but when I turn it on the screen is totaly black after waiting like 10minutes or so it started to brighten.


Try adjusting the screen contrast. Turn the calculator on. Press and hold the diamond key, then press + to darken or - to lighten the screen.

Jan 12, 2011 | Texas Instruments TI-89 Calculator

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My TI-89 Titanium's screen froze. Well actually, the cursor kept blinking but none of the buttons worked. I got it to restart using the (-) and ) button trick, but rather than going back to normal it went...


Hi kelsers,

You need to re-install your calculator's OS. After this process your Ti 89 Titanium will operate properly. If you do the process below make sure you use new batteries.

Warning!!! If you do this procedure make sure that your computer and, calculator are connect. Use Ti Connect software and, make sure you can install the OS on the calculator without any interruption. At any time even at the very beginning of this process, if your computer or, calculator gets interrupted or you have a power failure during the installation of the OS, your calculator will be destroyed. So not attempt this procedure during a thunder storm.


You can use the Ti OS Downloader but, you will have no idea what OS is stored by the Ti OS Downloader. So, I suggest following my instructions and, installing the newest Ti 89 Titanium OS 3.10v.

Procedure to installing the newest Ti 89 Titanium OS 3.10v.

You can also get the latest copy of Ti 89 Titanium OS 3.10v by going to the Texas Instruments web site. You can get to that site instantly by clicking, "Ti 89 Titanium OS 3.10v." Once your at the Ti site click the Download Item, Ti 89 Titanium OS 3.10v. Next you can login or, click "continue as guest". I'd would click the "continue as guest". Once you have click, "continue as guest" the Ti 89 Titanium OS 3.10v. will download to you. Click, "SAVE". And then a folder will pop up. It is probably a folder that you download too. If so, you may want to change it and, "Save as" to this folder, "My Documents \ My TI Data \ Downloads". You can also go back and, download the Ti 89 Titanium guidebook too, if needed.

Link your computer and calculator with the USB cable or, Direct Black Link cable that came with the calculator.

Remove one of the AAA batteries. Press and hold the [APPS] key, and while holding the [APPS] key, replace the battery and turn the unit on. On the older TI-89 you should see "Press I to install code...", and you should press the [9] key to continue. But, on your Ti 89 titanium it should say, "Waiting to receive..." or, "Waiting to received OS...". Now you need to follow the instructions in the paragraph below to restore the calculator's operating system.

Next, drag the Ti 89 Titanium OS 3.10v. that you copied earlier to "My Documents \ My TI Data \ Downloads" out of that folder and, drop it in the "Ti Connect" icon on the desktop. Next the OS Downloader Warning will pop-up. Click, "OK" to continue and, the new OS will begin to install. The Ti Device window should pop up and, click on to the port where your Ti 89 Titanium is located, USB1 cable or Direct Black COM1. Just click, "Select" and, the OS will continue to download. Upon completion the newest Ti 89 Titanium OS 3.01v. will be installed.

Jan 10, 2011 | Texas Instruments TI-89 Calculator

1 Answer

I turned on my TI 89 calculator to take an online college test that is due by midnight, and my screen is completely black!..HELP


your contrast might be up to much.
try this:

hit the diamond key and then the minus key. this shoud decrease the contrast. keep reapeating these same steps until your home screen is visible. hitting the diamond key, then the plus key turns up the contrast.

Oct 20, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Hi. I have a ti 89 titanium and the screen is black. I replaced the batteries... still the same problem. How can I fix this problem? Thanks.


Having received no response in over five months, I assume the suggested contrast adjustment solved the problem.

Oct 07, 2010 | Texas Instruments TI-89 Calculator

1 Answer

When I turn the switch on, ti-89 titanium does not turn on.


If you connect calculator to computer using Ti connect device explorer you might be able to see what files are on the calculator. I don't know if you downloaded from the web but, 3rd party programs and shells tent to miss up the calculator. This would able you to delete out possible problems which could be re installed later.

Sep 22, 2009 | Texas Instruments TI-89 Calculator

1 Answer

I tried updating the OS on my TI-89 Titanium and when it was done, my screen only shows a black bar going across the top. What has happen and how do i fix it?


There is a progress bar while downloading and installing the OS
if it doesn't go away and you can't use your TI then you can re-install the OS
When you do re-install the OS just re-download a second copy from the Texas Instruments
website and use that. Do not unplug the calculator until you see the normal homescreen and everything is fully working again.

Mar 06, 2009 | Texas Instruments TI-89 Calculator

1 Answer

Darken screen!!!


reset your calc, press 2nd left right on simultaneously. it should work.

Apr 25, 2008 | Texas Instruments TI-89 Calculator

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