HP 50g deep-sleep mode

[Joe Horn]

(10-15-2018 10:19 PM)cdmackay Wrote:  In the 50g User's Guide, in Appendix G (Useful Shortcuts), it mentions On+SPC as a shortcut for “Deep-sleep shutdown - timer off”:
Yet when I try it, nothing at all seems to happen.

Am I confused, or was this perhaps never implemented, or removed in a later firmware?

It WAS true for the HP 48 series, in which it was often referred to as "coma mode". But apparently coma mode went away when the 49G came out, so, as the others have said, it shouldn't be in the 50g manual.

I have a gut feeling that there were some models other than the 48 which also had a coma mode of some sort. Anybody know of any?

We now know (thanks, Cyrille!) that the Prime G2 has a deep sleep mode which uses less power but doesn't stop the clock. It's accessed by pressing and holding down Shift, then pressing and holding down On for about half a second, when the little HP logo blinks (merely pressing Shift+On isn't enough).