HP Forums

(12-23-2018 07:07 PM)edryer Wrote: [ -> ]… regional variations of the Calculator exist restricting various functionality … with modern School calculators, firmware is modified depending on market … in Casio's case D Germany, AU Australia and so on... these are then appended to the model number somehow such as:
FX-991E X (International English Version)
FX-991DE X (Germany) - this apparently has more functions in firmware than the 991E X such as GCD/LCM/Int/Intg shifted functions on the keyboard
FX-991CN X (China)
FX-JP900 (Japanese variant of 991)

[attachment=6694]
still working on the fx-991CN

BEST!
SlideRule

(12-23-2018 10:42 PM)SlideRule Wrote: [ -> ]still working on the fx-991CN

Check this topic ~38th post: CASIO fx-991. My DEX genetates QR code that EDU+ cannot recognize. I think this is a firmware bug on DEX.