Need help programming HP-35s

[walter b]

(07-26-2014 08:59 PM)kjac Wrote:  I'm trying to program my new HP-35s with a programing book written back in 2007. I'm not sure if there have been any firmware updates on the calculator since then, so that could be the source of my problem.

Be assured there were no firmware updates on that calculator model at all, so that's not the source of your problem.

d:-/