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Casio FX-991ES Plus Repair Forum

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Casio FX-991ES Plus
2 Respostas

How do I fix my calculator that only runs on solar power?

aceito Casio FX-991ES Plus 2 respostas

EV89

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commented por EV89

Casio FX-991ES Plus
4 Respostas

Facing Problem on my calculator

Casio FX-991ES Plus 4 respostas

laffy

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commented por laffy

Casio FX-991ES Plus
2 Respostas

How to repair the display

aceito Casio FX-991ES Plus 2 respostas

Mohammed Rihan

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commented por Mohammed Rihan

Casio FX-991ES Plus
0 Respostas

started working like that of Casio 115 ES plus.

sem resposta Casio FX-991ES Plus 0 respostas

oldturkey03 782 mil

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editado por oldturkey03

Casio FX-991ES Plus
8 Respostas

Not working. No display. Better also changed. what should I do?

Casio FX-991ES Plus 8 respostas

Padson Sunday

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answered por Padson Sunday

Casio FX-991ES Plus
1 Resposta

My Casio power button is not working

Casio FX-991ES Plus 1 resposta

Asha Kanta Sharma 127

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answered por Asha Kanta Sharma

Casio FX-991ES Plus
1 Resposta

Why doesn't my calculator turn on though I just got it?

Casio FX-991ES Plus 1 resposta

mayer 685,3 mil

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answered por mayer

Casio FX-991ES Plus
0 Respostas

My Calculator's [AC] & [-] buttons aren't working properly

sem resposta Casio FX-991ES Plus 0 respostas

Zachariah Orton 405

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commented por Zachariah Orton

Casio FX-991ES Plus
1 Resposta

Can't find the brightness changer mode

Casio FX-991ES Plus 1 resposta

jayeff 448,9 mil

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answered por jayeff

casio fx-991es plus
2 Respostas

LCD has blotch after I dropped my calculator. Can this be fixed?

casio fx-991es plus 2 respostas

Logan Howlett

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commented por Logan Howlett

Casio FX-991ES Plus
1 Resposta

Why it is hang after pressing √(10) *10^13

Casio FX-991ES Plus 1 resposta

Erik Eriksson 2,2 mil

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commented por Erik Eriksson

Casio FX-991ES Plus
0 Respostas

calculator is switching off despite I changed the cells

sem resposta Casio FX-991ES Plus 0 respostas

1 1

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asked por 1 1

Casio FX-991ES Plus
1 Resposta

My calculator is not turning on

Casio FX-991ES Plus 1 resposta

jayeff 448,9 mil

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answered por jayeff

Casio FX-991ES Plus
1 Resposta

Solar panel is broken

Casio FX-991ES Plus 1 resposta

Logixal 2,7 mil

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answered por Logixal

Casio FX-991ES Plus
4 Respostas

need help to repair my calculator

Casio FX-991ES Plus 4 respostas

deepakamath999

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answered por deepakamath999

Casio FX-991ES Plus
1 Resposta

How to Change Mode

Casio FX-991ES Plus 1 resposta

jayeff 448,9 mil

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answered por jayeff

Casio FX-991ES Plus
1 Resposta

Where I get service parts

aceito Casio FX-991ES Plus 1 resposta

Bijoy 11

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answer accepted por Bijoy

Casio FX-991ES Plus
2 Respostas

How to fix calculator suddenly goes off after calculation

Casio FX-991ES Plus 2 respostas

Oniruddho Alam

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answered por Oniruddho Alam

Casio FX-991ES Plus
0 Respostas

Why is the on button not working?

sem resposta Casio FX-991ES Plus 0 respostas

Adeleke Habeebullah

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asked por Adeleke Habeebullah

Casio FX-991ES Plus
0 Respostas

Closes automatically after 3 sec. Even after replacing my battery.

sem resposta Casio FX-991ES Plus 0 respostas

Tanveer Hasanwale

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asked por Tanveer Hasanwale