HP 50g questions

[franz.b]

(03-28-2019 04:57 AM)Joe Horn Wrote:  34 of the 50g's built-in press-and-hold key combinations are listed in Appendix G ("Keyboard Shortcuts") of the Advanced User's Reference Manual. I think the only one missing is the three keys B, C, and D, which, if held down throughout a warmstart, puts the 50g into "Smart Mode" (RPN and a few other settings). This unsupported feature was added during product development by Cyrille de Brebisson for his own use, and he nicely left it in for the rest of us to use. He chose those three keys not because BCD stands for Binary Coded Decimal, but because they are his own initials.

strong!
but I don't seem to succeed ... warmstart is what happens after on-C? how do you recognize access to this smart mode?