No, I was talking about two phones. One in the shop set up as watch-only. The cashier uses the "Receive" button, enters the amount in local currency and displays the QR code to the customer. The other phone (or "device") safe with me and with the full set of private keys. This was easily done pre-HD, looking forward to see it in HD too!




Synchronising definitely takes noticeably longer "all the time" with the new release for me.

Of course. Having the same master seed on two platforms is not the intended application. But in the case your phone is stolen/compromised (or broken) it is faster to use Trezor (if you have one) to temporarily protect your BTC than to get another android phone and install Mycelium. I know you can use backuputil too
I have both Mycelium and Trezor and I intend to use them both :-).

No. None was migrated to the new HD account. They were just kept, not migrated.


I did not have to do that. The Local Trader wallet remained in place, as expected.

The question remains, how can I migrate the Local Trader wallet to the HD account?

The only way I can see is to delete my Local Trader status completely and create a new one. That, however, would lose everything, history and rating.

I guess there is currently no other way. Of course I can keep the old account, but that would mean not having any of the HD advantages.

No very big deal in my personal case, but I guess that a successful long-term trader might hate to lose all his credentials.

You cannot migrate keys into an HD account.
And HD account has a defined structure with a deterministic set of keys being created.
You can keep your keys - when I wrote they get migrated, I was referring to the fact that Single Address Accounts are created from them, so you get to keep them in your wallet.

You cannot migrate a local trader identity to another key.
This is due to the fact that your local trader chats are encrypted based on that key.
You can create a new identity based on an HD account.
But there is no downside to just keeping your local trader key and identity, you can even archive the account holding it. Trading is not tied to your local trader account, you can send and receive via local trader using whichever account you have selected in your accounts tab at the time you trade. The local trader key is only used and needed to identify you against our servers and encrypt your private data.

As for the HD accounts: You will not get a new receiving address every time you show the address, but every time you actually receive funds. This is to prevent big gaps of unused addresses, which could cause problems upon later import. We will, however, in the future probably provide the ability to create multiple receiving addresses in an account in advance.

Short update:
Version 2.02 re-introduces the old way to back up single keys, as per frequent demands.
Its within the settings, at the very bottom, and does only show if there actually is at least one single private key in the wallet.
Note that this does not back up the master seed and is by no means a substitution for making a proper wordlist backup.
We still advice people to move funds to hd accounts.

Thanks, Newar and trasla, for the good information. All clear now.

Keeping the old Local Trader non-HD account is just a tad unpleasant, as it requires an old-style backup in addition to the HD backup, and that is just what we wanted to get rid of. But I see the point—there is no other good way. Local Trader migration would probably require an unreasonably high programming effort, not worth the trouble.

Perhaps a way could be devised to delete a Local Trader account completely, allowing to keep only the name or allowing to create a new Local Trader account with the same name, so the trader is still recognized by peers. That does not sound overly difficult. Anyway, no big deal.

Is there anyway to export a private key of an address with the HD wallet? I cannot find it and it bothers me quite a lot. Sometimes I need an address on my phone somewhere else as well.

How do you wipe app data, do you mean uninstall it?
I have the HD wordlist generated by mycelium, only because the update to hd didn't give me the option of inputting my own.  But that's not how I would have done it given a choice.  So I would like to know how to wipe it and enter my own wordlist.

Just got around to organizing my Mycelium 2.0. Thanks for a great HD wallet app. I am looking forward to “growing” with this wallet as the Mycelium team continue to add features as I’m sure they will going by their track record.

BTW, Item 3 in the online Help needs editing now that single address accounts can be backed up. It would be nice if transaction and Account labels could also be backed up.