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Scientific Casio Calculator released August 2000. Identified by the model name FX-115MS

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My calculator can't work, what should I do?

I bought a calculator last month. But I don't know what's going on, it's always good or bad. Sometimes he can't display what I typed. what should I do?

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crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
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crwdns2933313:01crwdne2933313:0

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test by pressing all the number from 0 to 1

if some are working it’s likely to be water damage

if not you gonna need to reset it using the MODE 9 combination

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crwdns2889612:0crwdne2889612:0 0
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Annaa crwdns2934231:0crwdne2934231:0
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crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 5

crwdns2936753:030crwdne2936753:0 9

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