Question about Texas Instruments TI-89 Calculator

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I just upgraded my ti89 and now it will not detect in windows 7

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  • charles williams
    charles williams Jan 03, 2011

    How did you upgrade your Ti89? Hardware 1 would be an upgrade in my book. Not to many people have them. Are you sure it is an upgrade and, not an update? Reason I ask, I can see putting a faster memory chip in a straight Ti 89 unless it was a Hw1 version and, a different os. And a different os may be a problem. Let me know what you mean by upgrade.

  • charles williams
    charles williams Jan 03, 2011

    When or if you answer the question about upgrade or update would it be possible to also state if your computer is 64 or, 32 bit? Are you using Ti Connect or, the Ti Graphic Link software? The following sentence is a correction from my clarification above. Reason I ask, I can not see putting a faster memory chip in a straight Ti 89 unless it was a Hw1 version and, a different os Answering these questions will help in providing a solution for you. Thank You!

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I'm going to take it that your Ti 89 upgrade is a Ti 89 OS update. Check and make sure your Ti 89 OS is up to date with with OS 2.09v. For ti 89 Titanium your OS should be 3.10v. To check the version of your OS from the home screen press, [F1] [A]-About. The OS version should show up at the second line from the top of the "About" window that pops up. If you don't have the updated OS version you should go to the Ti web site and download it. Now let's try getting the computer and calculator connected.

When you have your computer and, Ti 89 calculator connected the calculator should be on and, at the home screen.

Procedure 1.

Go to your Start Menu and search for Device Manager.

Open up Device Manager.
Scroll to the USB controller and click the +. Turn the calculator ON then connect the USB cable to your PC. A new device will appear on the USB controller.
Right-click on the new device and, choose Update Driver Software. The Hardware Update Wizard will appear.
Choose "Browse my computer for driver software".
In the search field type in C:\Program Files\TI Education\Driver Files. Look for the tiehdusb.inf driver file.
Click on Next to finish installing the driver properly
Once the driver is installed click Finish.

Procedure 2.

Now click on the "Ti Connect" software on your desktop. Double-click the Ti Device Explorer located to the left inside the Ti connect window.

I just upgraded my ti89 - oneplusgh_41.jpg

The software should start looking for your calculator. A pop-up should display looking something like what is pictured below. Under device your calculator should display. If your calculator is located the software will highlight on to it. Click, "Select" and another window should pop-up.

oneplusgh_39.jpg

The next pop-up should look something like this. If your Ti 89 is present it will show up next to device and, probably won't say Titanium. Your cable type and port should be listed too.

oneplusgh_40.jpg

If all the information is correct in the window that appears click "OK" and, you should be able to start downloading. You can skip the rest of the procedures. If your Ti 89 still won't connect to the computer goto Procedure 3 unless you have already tried Procedure 3, then goto procedure 4.

Procedure 3.

If the above procedure still does not help then try un-installing and, re-installing the Ti Connect software. After un-installing re-boot your computer. After re-booting your computer you can get the latest copy of Ti Connect software by going to the Texas Instruments web site. You can get to that site instantly by clicking, "Ti Connect software" At this Ti site under "View: Connectivity Software", Click, "the OS link that applies to your computers operating system". Next, click the Download Item, "Ti Connect software for ....OS". 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 Connect software for ....OS will be 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, "Desktop."

Next right-click the Ti Connect executable on your desktop and select, "Properties." Then click the "Compatibility" tab located at the top of the "Properties" window. Click the box next to "Run this program in compatibility mode for." and select "Windows XP Service Pack 2" from the drop-down menu. Click "Apply" and choose "OK." Double-click the TI Connect executable and select "Next" to begin the installation. Click "Yes" to OK the installation process to proceed. Then click "Finish" to complete the installation. Next, reboot your computer.

Now go back and try Procedure 1 and 2 again. If you have already tried Procedure 1 and 2 twice, go to Procedure 4.

Procedure 4.

If the above procedures fail then try a different cable and if possible a different computer.
If trying different cables/computers fails, please contact and fill out a Ti Cares Customer Assistance Form. You can get there by clicking this link, " Ti Cares Customer Assistance Form "

Attach a system information file to the email reply you receive from "Ti Cares Customer Assistance Form."

To get the system information file:

Go to Start Menu and search for System Info
Once loaded, click on File and choose Save
Name the file FirstNameLastName.nfo
Please check to make sure that system info file(.nfo) is the selected type of file.
Attach the .nfo file to the email reply

Posted on Jan 11, 2011

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In any case, I sent an e-mail message to ti-cares@ti.com, giving the link to your original question and my answer to it. I took the liberty to copy/paste your present message. I also asked about that invalid certificate.
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