Question about Texas Instruments TI-89 Calculator

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Not recognized by computer when plugged in

From when I have gotten this TI 89-Titanium I have been wanting to download games onto it, however, this is where the problem lies. For when i try to plug my calculator into the computer it knows it is there but does not recognize it as any device even after i have installed all the necessary programs required as well as updates. Please help if you can because I would love to be able to play games when I get bored, haha :-) THANKS!!!

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Re: Not recognized by computer when plugged in

Look for TI-89 titanium drivers and install them to your PC. then connect ur calculator and it should be working.

Posted on Jul 09, 2008

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At first ti connect recognized devise now saying cant find my ti-89 device

At first, open TI Connect software and open TI Device Explorer. Then in the Actions menu choose option Select Device and select Port USB, Cable USB cable and Device TI 89 Titanium(all in the same line).
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Feb 24, 2012 | 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

Ti-89 titanium

Having gone over a month with no response, I assume this is no longer a problem.

Jun 26, 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 am trying to download the new OS for the ti 89 titanium but i am not sure how to get it onto my calculator.


Use the link below to download TIConnect software
Install it on your computer and run it to oppen the main Window. Then connect you calculator to a USB port and, in the TIConnect main window Click the TIConnect TIDeviceInfo. It will try retrieve the info.
If it does your calculator is fine.

If it tells you Device Not found , Click communication settings in same pop up window where it said Not found, and Select Device, Select Cable, Select Port and try OK..

ou drag and drop the OS on the TIconnect main window. Calculator must of couse be connected to computer.
Hope it helps

Dec 08, 2008 | Texas Instruments TI-89 Calculator

1 Answer

Ti 89 Titanium

The only option or keys that will work is the ENTER key and the arrow keys. Try to get your arrow key to work by arrowing down and hit enter hopefully change you to something different.
Next, if at all possible can you hit the MODE key or get into the mode. If you get into the MODE select F3 and then arrow down twice or all the way to the bottom and at APPS Desktop select 1:OFF and then hit the ENTER key. Next, What I really think you need to do is reinstall the Ti 89 OS software. To do so you would need to connect to your computer or another Ti 89 Titanium to your Ti 89 Titanium. If you have Ti connect computer software (from the Ti site) connected to your Ti 89 Titanium it might help you more in troubleshooting any further problems too. You might be able to delete corrupt files that would free your calculator up and start running better.

Sep 03, 2008 | Texas Instruments TI-89 Calculator

1 Answer

My TI-89 Titanium Is Dead

You might have deleted something that the calculator uses to connect to the computer and run. If you can still connect, just download the software from the TI site and re-install it. If that does not work buy a new calculator, and plus a new one only costs 40- 50 dollars more than that repair.

Mar 16, 2008 | Texas Instruments TI-89 Calculator

1 Answer

I accidentally resetted my ti-89 titanium

Use the TIConnect software to connect the calculator to the computer.Then in the TIconnect main window you can drag and drop the applications you downloaded from They will be transferred to the calculator.
I cannot understand why you cannot graph normally since the graphing is not an application, it is part of the OS.
While you are connected to the Internet and to the calculator, you may want to reinstall the OS directly from to your calculator
Hope it helps.

Feb 22, 2008 | Texas Instruments TI-89 Calculator

1 Answer

Ti-89 wont turn off

I'm having the same problem:(
I need to solve this urgently, i can't stand always being removing the batteries... please help me!!!

Oct 16, 2007 | Texas Instruments TI-89 Calculator

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