Question about Texas Instruments TI-89 Calculator
Hi! my calculator cant be turned on! I just left my calculator untouched in my bag for a few days and when i took it out to do some homework, it jsut couldnt be turned on. I changed the batteries already. What can i do? Also, does changing the backup battery help?
Try to increase the contrast
1. Turn it on
2. press [2nd] and release button
3. Press [UpArrow] and release button
4. Repeat steps 2 and 3 until contrast is adequate.
If that does not work use the link below to install 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..
If all that does not work, then it may be time look for a repair shop.
If you are lucky and it works, you should reinstall the OS, which can be downloaded from education.ti.com. You 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
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Posted on Jan 02, 2017
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