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Usually you just need a pw for the keystore. If you have the 12 words you don't need the keystore file. I get an error message while importing. The pw must be correct because I did some decryptions test with scripts the other day.

Dont import use your 12 words

Yeah, I tried that before multiple times. I must have been drunk because now it worked. Sorry for bothering you. Now I feel stupid. You have no idea what I did and tried for multiple hours the other day.

No bother my friend, I cannot believe I finially figured it out. Took lots of time and study ;)

Well, it's not my first time doing these things and I don't know why it did not work the other day. Must have been multiple typos and then I tried to decrypt the keystore with tools, scripts and help from ChatGPT.
Thanks for the help! !BBH

You are more than welcome, with what I went through, I am glad to help ;)

Also logging in LeoDex works perfect with keystore.