Question about Texas Instruments TI-89 Calculator
The calculator keeps giving me the message :"Internal Error" when I tried to enter any calculations or command at all after I put in new batteries (both the internal and the AAA batteries.)
Try holding [left][right][2nd][on], that reinitializes the calculator and clears the ram. If that doesn't work you could try reinstalling the OS (refer to manual for details). If it still doesn't work, you will probably have to call TI.
Posted on Jan 18, 2007
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jan 13, 2014 | Texas Instruments Voyage 200 Calculator
Sep 22, 2011 | Texas Instruments TI-84 Plus Silver...
Sep 07, 2011 | Texas Instruments TI-84 Plus Calculator
Apr 14, 2011 | Texas Instruments TI-84 Plus Calculator
Sep 24, 2010 | Texas Instruments TI-84 Plus Calculator
Sep 07, 2010 | Texas Instruments TI-83 Plus Calculator
Jan 18, 2010 | Texas Instruments TI-84 Plus Calculator
Dec 11, 2009 | Texas Instruments TI-83 Plus Calculator
Nov 13, 2009 | Texas Instruments TI-83 Plus Calculator
Mar 11, 2009 | Texas Instruments TI-89 Calculator
1,209 people viewed this question
Usually answered in minutes!
Level 3 Expert
Level 2 Expert
Level 3 Expert