Question about Texas Instruments TI-84 Plus Calculator

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Just flashes abox in the upper left hand corner. no other functions

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  • kakima Sep 15, 2010

    Try a reset. Remove all four AAA batteries. Press and hold the ON key for ten seconds. Replace the batteries. Does the calculator turn on and work normally now?

  • jeffrey Jun 02, 2013

    HAve this problem as well - just started yesterday - tried all the rest set functions and it does not work - still left with the blinking square.

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Having gone over a month without a response to my query, I assume the suggested reset solved the problem.

Posted on Oct 21, 2010

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