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

[rprosperi]

(02-23-2020 07:06 PM)Benoit Maag Wrote:  Good point - the 15LE has the 6 contacts near the battery, same as the 20B/WP34/31, so the code in the machine should be readable and reprogrammable, but surely not easy to do...

Yes, the 15C-LE can be re-flashed, and the SDK HP released around 2013 presumably works fine, but without the 15C LE code, fixing anything is just about impossible, or at least really, really, really! difficult.