Would the HP-15C Limited Edition Firmware Age Away?

[teenix]

(03-13-2018 09:08 PM)Dan Grelinger Wrote:  In a conversation that I am having with an Asian HP collector, he said he put an HP-15C Limited Edition away with batteries removed for 5 years and recently took it out to test it. After an initial "Pr Error", the calculator would not operate.

I think the fact that "Pr Error" appeared proved the hardware worked. Maybe faulty batteries, dirty battery terminals?

cheers

Tony