![Casio fx-CP400 help required, yes I have checked the manual... Have reseted it in everyway possible, and it keeps spamming "E". First time using this in years : r/calculators Casio fx-CP400 help required, yes I have checked the manual... Have reseted it in everyway possible, and it keeps spamming "E". First time using this in years : r/calculators](https://i.redd.it/qym8tmybgkcc1.jpeg)
Casio fx-CP400 help required, yes I have checked the manual... Have reseted it in everyway possible, and it keeps spamming "E". First time using this in years : r/calculators
![Forum TI-Planet.org • Manuel Utilisateur (User Manual) Casio Classpad II fx- CP400 (programme Manuels cp2) Forum TI-Planet.org • Manuel Utilisateur (User Manual) Casio Classpad II fx- CP400 (programme Manuels cp2)](https://tiplanet.org/modules/archives/captures/1374077624Region_40.png)
Forum TI-Planet.org • Manuel Utilisateur (User Manual) Casio Classpad II fx- CP400 (programme Manuels cp2)
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