Question about Texas Instruments TI-89 Calculator

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TI 89 problem

Battery in my TI 89 leaked and now the calculator doesn't do anything. ie. it is just blank or just some black stripes on the LCD. Is there a way to get my calculator fixed.

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Re: TI 89 problem

Try doing a hard reset (hold simultaneously Left + Right + 2nd + On). If it just isn't wanting to display properly, but does turn on, that might help. I think you can do the same thing by taking the four AAA's out and the spare CR1616/CR1620. Otherwise, the battery acid probably ate one of your components and it's time to repair/replace your handy-dandy.

Posted on Oct 03, 2009

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My ti-89 is frozen, no matter what keys i press.and although i took off 4 batteries, but when i put batteries back, it is still same, menu screen.

First try the reset code which is pressing Left-Right-Shift and On at the same time. If that doesn't work you can try removing the batteries and putting them back in while holding the (-) and ) buttons.
If those don't work, there is a back-up battery located under a panel just above the four normal batteries underneath the battery cover. Removing this in addition to the four normal batteries should reset your calculator entirely.
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