WP34s flashing procedure

[Marcus von Cube]

(03-01-2015 04:26 PM)Dieter Wrote:  Just to be sure: is it possible to use the standard update procedure (ON+D D, ON+S S) to turn a 34s into a 31s and vice versa? I am asking because I wonder what happens to the saved settings that are usually restored after an update. The backup included all programs and data registers, but all this (resp. only a few data registers) is not supported by the 31s.

I'm pretty sure that the image in flash will not be recognized as valid by the "alien" firmware. So it will will most probably come up with "erased" instead of "restored".