HP-15C LE bricked?

[vaklaff]

(07-23-2022 10:40 AM)Hans Brueggemann Wrote:  problem solved, probably just by chance: didn't try batteries, but on a hunch, i lowered the supply voltage to the calculator down to 3.0V (previously 3.3V) and tried the entire flash process again. lo and behold, WP34sFlash.exe did its job, and the calculator is functioning normally.

Congratulations, I'm happy for you :-)

(07-23-2022 10:40 AM)Hans Brueggemann Wrote:  edit: find attached the STL file for a CR2032 dummy. couldn't post it as *.STL, so i added a ".txt" to the name. covered top and rim with self-adhesive copper foil and soldered two wires to it to make a q&d battery adapter for testing.

Would you mind sharing a picture of the contraption of yours in action? In spite of being clumsy myself (or maybe because of it) I'm curious what skillful people do. Is it how you use the calculator regularly or was it just for the single occasion?