Question about Texas Instruments TI-89 Calculator
Hello! After a few days of don't use it I found my TI-89 Titanium calculator with frozen screen in the apps menu, I have tried the next resets: On reset (removing one the batterty), 2nd left right On reset, (-) and ) reset, I have tried connect it with PC and try to install the OS but the PC doesn't detect the calculator. Also I have opened it and cleaned with compressed air everything and tried all over again but the apps menu screen still is there. Would you care to help me? Thank you in advance.
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.
Posted on Oct 15, 2012
I have the same problem (TI-89 titanium)
1) 2nd+left+right+>on lets me restart the calculator to app menu but is frozen.
2) remove battery>hold "APPS">reinstall battery> "waiting to receive"
3) no connection to PC. I've tried latest version TI connect, restarting computer, reinstalling TI Connect software + restarting PC, new cables, and even different usb ports. I even tried different computers, Windows 7, Windows 10, and MAC with TI connect 4.0. But the problem is TI-89 calculator is not showing up on the device manage USB ports....
Lastly) it would be a waste to discard the calculator when it seems mechanically functional and responsing to the 2nd+left+right+on and battery+APPS procedures, but locked in software...
still looking for a fix.
Posted on May 16, 2019
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Posted on Jan 02, 2017
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
Posted on Sep 13, 2009
You have a older Ti89 /Ti83 APP or software on your calculator that you have to have a key, a proper serial number and a certificate in order to run on your calculator. Like my calculator has certificate #19 which allows me to operate a certain APP that is not issued any more. You need to get rid of that APP or software and update it with the new version. Obviously, you did not just download this recently from Ti89 \ Ti83 or Calculus Made Easy. This should give you a clue to what you did wrong. I don't think Nils at Calculus Made Easy or Ti89 \ Ti83 will give you a certificate but, they will help you with your software needs. K24674 instruction to you on how to reinstall the OS v2.09 for Ti89 is correct. Just don't try reinstalling the APP's or software that you had on the ti89 \ Ti83. Go to the Ti89 \ Ti83 APP's and programming sites and download and install the new updated versions of those APP's and software for your calculator.
Posted on Nov 01, 2009
Testimonial: "Sorry to hurt your feelings. Didn't mean to. I gave him kudos for a great job. BTW, I just bought the calc and dislike being called a thief.thank you2"
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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  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.
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