HP-41C - Memory lost

[Steve Simpkin]

There is a good chance that some of the support posts have cracked and are no longer keeping the top and bottom halves of the case tightly together. This causes a poor connection with the circuit boards and the flexible interconnect. Could also be corrosion on the battery contacts. I would look at that first but be careful cleaning them as they are delicate.

https://www.hpmuseum.org/cgi-sys/cgiwrap...cgi?read=2