Question about Casio FX-9750GPlus Calculator
First of all check its warranty, if exists, concern the authorized dealer or representative. If not unscrew your calculator and clean keypad with a wet white cotton cloth by rubbing gently you will see black spots on the cloth. place the keypad at where it was placed previously. You will find it working as usual. INSHALLAH.
Posted on Oct 08, 2010
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Posted on Jan 02, 2017
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