Thanks you two. Dump done. I supose that afterwards I must use the same command ut with "load" instead of "dump", it is:

dconf dump /apps/harbour-mitakuuluu2/ > file.dump
cat file.dump | dconf load /apps/harbour-mitakuuluu2/


I see that that dump have similar data to the one in .config/coderus
That config file is needed or is from old versions and now can be removed safely? If it's needed, I wouldn't need to copy it too?

Happily maybe my phone is not death and I won't have to risk doing this. I followed this (from shell of recovery) and it resurrected from his boot loop: https://together.jolla.com/question/...ious-problems/

Hope it continues alive...