CASIO fx-3900P memory increasing (with keystrokes) is possible?

[Csaba Tizedes]

(01-08-2020 10:39 AM)david sanz Wrote:  I suppose the only way to find out whether this procedure actually works is to get a fx3900p and try it.

I have one like a new, I will try it and I hope it will not bricked.
BTW: I guess this is a classical "wake-up" feature of CASIOs as Dave wrote in the second post. After a RESET the memory will be 100 steps available as normal.

Cs.