Question about Texas Instruments TI-89 Calculator
If you and hold down simultaneously [2nd],[<],[>],[ON] it will get get rid of the message but will erase everything stored in ram. I had the same problem and this worked for me.
Posted on Dec 31, 2008
Thank youu this fixed my problem as well.
Posted on Jun 15, 2009
It sounds as though your calculator wil have to be reset, which will clear the RAM (erasing all unarchived data [including system variables], resetting all mode, graph, and table settings, and resetting the Clock). (I just hope you didn't have a lot of unarchived data!) To reset the calculator, hold down the left arrow key, the right arrow key, and the Second key; press and release [ON]; and then release the arrow keys and the Second key. That should do it!
Posted on Jun 12, 2007
Hey guys, i had the same problem, two weeks ago, my solution was to remove the batteries (reserve and principals) for fifteen minutes, then i put it again and ready
this solution is 100% effective
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Posted on Oct 13, 2012
Take out all five batteries and put them back in so you don't have to reset
Posted on Jun 07, 2011
Thankyou so much for the solution to this problem.
Posted on Oct 19, 2008
Posted on Oct 02, 2008
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Posted on Jan 02, 2017
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