Question about Texas Instruments TI-89 Calculator

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Calculator quick working

My Ti-89 titanium calculator quit working while i was using it. I figured it was the batteries so i changed those, this made it work for a couple minutes and then it died again. I didn't change the small back up battery, idk if this would effect it. It was not dropped or anything that would cause it to break.

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Re: Calculator quick working

One solution, if it is going to cost you $81 as someone suggested, is to ck. Pawn shops. My local one has a TI89 Titanium for sale (without cables or a manual) for $50, but they would take $35, I bet. You can always download a new operating system free from TI's website. I already have a backup TI82 that works like a charm that I bought used for $20.

Posted on Jul 12, 2007

Re: Calculator quick working

Mine did the same thing and I was told by Texas Instruments that I can send it in for repair--for $81 since it is more than 1 year old.

Posted on Apr 03, 2007

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TI-89 Titanium screen frozen at apps menu

Remove the small memory battery, and then remove one of the four AAA batteries, then while holding down the APPS button reinstall the AAA battery and then it should say waiting to recieve operating system then hook it up to your computer with the silver connect cable and then on the computer send the operating system to the TI89 Titanium, and wait for it to install completely and it should work.

Sep 12, 2012 | Texas Instruments TI-89 Calculator

1 Answer

I have a TI-89 Titanium but I wont turn on. I changed the internal battery and the normal battery (AAA) but still not working. Need help.

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 hold the diamond key, then press the + key repeatedly to see whether the screen darkens.

If this doesn't do it, please reply to this post and we can try other things, though they may cause the loss of the contents of memory.

Mar 03, 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

My TI-89 Titanium will not power on no matter if i change the batteries or press any buttons, any ideas?

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 hold the diamond key. Press and hold the + key for a few seconds and see whether the screen becomes legible.

If this doesn't do it, please respond to this post and we can go on from there.

Dec 01, 2010 | 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


If you make a custom, you can have the Toolbar F function keys operate as 7, 8, & 9. If you respond with a rating I'd even write one out for you, and make it where you just hit [2nd] [CUSTOM] for the use of those keys.

Oct 03, 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

3 Answers

TI-89 Backup Battery

Usually you will be able to re-install everything. And I would try uninstalling the program first then if that doen't work just pull the batteries out and put them back in or just press the reset button. Hope this helps. =)

Feb 24, 2008 | Texas Instruments TI-89 Calculator

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