problem in calculator casio fx991ms

aarthivg

aarthivg

@aarthivg-HH344f • Oct 12, 2024
i have casio fx991ms. there is a problem in that. for example for 2+2 the result it shows is 00000. what could be the problem. can anyone help me please
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  • Nachko

    Nachko

    @nachko-rBBzDO • May 27, 2012

    Most likely the reason is weak battery. Replace it (one AA battery). Or you may ask for help here:

    <a href="https://inquiry.casio.co.jp/support/contact/form_I_en_f1.html" target="_blank" rel="nofollow noopener noreferrer">Inquiry Form - CASIO</a>
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