lfused
Joined: 20 Jul 2008
Posts: 1
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 Posted: July 20, 2008 9:33 AM Post subject: Frozen screen |
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My screen froze on me when I was trying to simplify a variable equation. It would not turn off and when I removed the battery and replaced it nothing changed. I tried removing and replacing the backup battery but the calculator just reset but would still not turn off or allow me to type anything onto the screen.
I really don't know what to do.. my calculator is a simple TI-89. Does anyone know what I should do? |
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