Thank you for the clarification.

Worked, you are the best! My BTC are back \o/

Thanks a lot for helping me out.

So I also think I understood:

- the mnemonic is the "global" seed, from which the private keys for every coin are derived
- deriving has a "path", where every coin has its own number, so this is how the BTC and BCH deriving differs
- since keys are the same in both networks, and networks don't care about a "coin number", using keys in one another works
- when I add new accounts to my ledger, I assume it just iterates through the derived addresses

Is this correct?

Thats very good news!

I can export/generate the keys like this https://support.ledger.com/hc/en-us/articles/360005434914-Restore-from-recovery-phrase

I still do not get how/when the address comes into play. I have one passphrase for the Ledger device, but the device has many wallets...

Would I now simply:
- use the steps in the link to get my keys
- import the keys into a software BTC wallet

And then the coins show up?

Hi there! I hope my question is in the right forum, if not - sorry!

I have made a n00b mistake. I sent some coins from an online wallet to my Ledger Nano S cold storage.
I meant to send it to my Ledger BCH address, but I accidentally pasted that address in the wrong field so that the transaction got posted to the Bitcoin blockchain, not the Bitcoin Cash blockchain.

So now the transaction succeeded and I have no access to that address. I know how stupid that is, and that the coins are most likely lost.
But then I wondered, since the Ledger Nano S software generated these addresses, using my passphrase which I can use to restore the Ledger if I need to - is there a way to claim that BTC address using that passphrase? I do not know, how the addresses are generated using my passphrase. I would be glad if someone could explain it.

I do not really understand: When I restore a Ledger using the same passphrase, and then add a new Bitcoin wallet, that is the same address as on another device. I can add multiple Bitcoin wallets. How do they have the same address every time? And how do BTC and BCH address creation differ?

https://support.ledger.com/hc/en-us/articles/360005434914-Restore-from-recovery-phrase

Sorry if this is a stupid question, I am new in crypto and find it kind of hard to understand the key mechanisms And sorry for my english.