Question about Texas Instruments TI-89 Calculator
My titanium will not turn off, which is a huge problem. I put batteries in my titanium and it turns on just like normal, however when i hit 2nd, Off it turns off for a second then turns right back on. I have tried resetting everything, pulling all the batteries..... everything one could think of. I am a graduate student and have had this problem for a while now, when i have to take a test i have to bring batteries so that my calc will work, its ridiculous and it sounds like i am not the only one that has experienced this problem. Please can you help.
I had the same problem on my TI 89 Titanium. This is how i solved it:
1) I driled out the six screws with a 2,5 mm dril.(be carefull)
2) Then i took the greenplate out.
cleaned the housing, te buttens and the greenplate. put it back together. and it wase fixed!
So i think its not a softwareproblem but just a dirty inside.
Posted on Jan 05, 2011
I was able to fix the problem nut it requires several steps and only offers a temporary fix (untill the calculator is reset then it needs to be done again).
1. Press F5, then Dimond (symbol on buttion) then "Clear"
2. Press "alpha" then "S"
3. Press "0" dont mess with anything else here
4. Press "2nd" then "Quit"
Now you can turn it off but are missing the bottom text (rad,auto, etc...) to fix
6. Press "Mode" change radian to degree then "enter"
Now the text is displayed showing the mode.
7. Set the mode back to radian by reversing step 6.
Thats it I dont know how to get the bottom line back though...
Posted on Mar 05, 2008
My problems is so much worse than all of yours. I cant do **** its just frozen wont even turn off like the f'n symbols are burned into the screen
Posted on Oct 02, 2008
Have you tried taking out the small 'watch battery'. You will need a small screw driver and just pop out that battery. It will clear all data. I think it even clears archived programs, but i'm not sure. I had to do it last year.
Posted on Sep 20, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Apr 17, 2012 | Texas Instruments TI-89 Calculator
Mar 03, 2011 | Texas Instruments TI-89 Calculator
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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