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My FX-991EX seems to be stuck. It's not taking any inputs and not responding to reset button. : r/calculators
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How to full reset a Scientific calculator | How to set default setting of a scientific calculator - YouTube
How to reset memory on Casio fx-991EX Classwiz | Check out this video to learn how to reset memory and use it on your favourite calculator - Casio fx-991EX Classwiz. | By
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Reset Your Calculator, Ready for the Exam (Casio Calculator, fx-83GT) | Calculator, Exam, Graphing calculator
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