Thanks.
You can do this already, but maybe it is not that obvious. "BTC" is an icon, and if you click it the valuue turns into your selected fiat currency.

Interesting feature, but it means that if I lost my backup (and password), I can lost Bitcoins from new HD accounts. Is there any warning about this?
Also, does Electrum support this? Or will it be able to see only addresses from first HD account?

I am desperate to get my hands on the HD mycelium wallet. It will help a lot with my local bitcoin trading. When they release for beta testing, is it considered safe to use?

Been playing around with the testnet HD version and have a couple of questions.

a) Backup

Something I noticed in regards to the backups. I never made a backup when I initially started running the app. I created two new HD wallets so I had the original single key which the app created when installing it and the two HD wallets. When I made a backup I see that the single key is included in the backup. In the app however it still showed the 'No backup' message under the single key even though I've made and verified the backup.

I tried to make a backup just of that single key but see the backup came out the same i.e. for the HD wallets plus the single key. Again verified it but the message of no backup was still there as well as the backup button on the Balance screen. These disappeared after I deleted the single key.


I also have a question in regards to the backups and specifically in the following scenario: I create wallet A and make backup A. A week later I create wallet B. I understand that backup A will be sufficient to recreate wallets A & B so no new backup is required. If I however do make another backup (B):

1) is the first backup (A) still valid and can it still be used?
2) should it be destroyed and replaced by backup B?


b) Access Security

If I lose my phone is there anything that prevents somebody from sending my coins of into never never land? I've seen Mycelium ask me for a pin (cannot remember for what kind of operations it was required) but there is no request for the pin when opening the app and or when sending funds to another account. So from that I assume that anybody who has access to the phone will be able to move funds or did I miss something?

c) Electrum Paper Wallet

Is it possible to import a Electrum paper/watch only wallet into Mycelium? I though of just adding one of the addresses from the Electrum wallet to the address book (once we have the live version) of Mycelium and just send funds there but that would mean that the one Electrum address would be used over and over. The ideal would be for the Electrum wallet to be imported (without any private keys) so that each new transfer would go to a newly generated address.

If the importing of a Electrum paper wallet is not possible, is it possible to create a HD wallet in Mycelium and after a backup to delete all private keys associated with just that one wallet so in effect making it a paper wallet?

d) Sending to Multiple recipients

I see that one can only send to a single person at a time which is not a big problem as I guess 96% of my transaction is to a single address only but is this possibly something that may be added in future?


Love the new HD wallets and cannot wait to get the 'live' version of this app.

Yes I only scanned the master seed. Did not realise I had to verify the backup for the single key also. Tested again and it is working fine.


My mistake sorry. I had a pin on the 'normal' Mycelium wallet and not on the testnet HD version. That's why it did not ask for a pin in the test version but it did in the 'normal' version. Guess I just forgot where the pin was asked. Added a pin to the testnet version and now working fine, thanks.


Okay, not a problem. Can a person however create a new HD wallet and delete the private keys after a backup and by doing so essentially create a paper wallet?


EDIT: Not to worry about last point above. Think it will just confuse things should such an option be available. I'll just keep my paper wallets on Electrum and just scan the keys to make transfers from Mycelium, easy enough to do that and maybe also safer to just keep the paper wallet completely offline so to speak.

I have not used a HD wallet before. This looks really interesting and should be great once finished.

In the Accounts Tab, the top bar can disappear altogether. That is, the top bar is blank when an Account/Address is highlighted (blue) and even when nothing is highlighted. Meaning, both versions of the top bar ((tick, edit, archive, menu) & (logo, +, lock, menu)) are not visible. The condition was temporary and I am not sure what I did before the top bar returned to normal. I could not reproduce the condition. Note that swiping to other tabs and going back to Accounts did not resolve the issue.

Screenshots would be interesting. Please share here or send them to developers@mycelium.com. Also, what device are you using?

If it was me I would rather look at cold storage i.e. a paper wallet or offline wallet with either Armory or Electrum if you plan on storing the fund in there for such an extended period. Do not think it is a good thing to leave all those funds in an online wallet. I believe that the security of MyCelium should be fine but I would sleep better knowing that those funds are in cold storage.

Amazing update! Thanks so much for your hard work! By the way, are there any plans on supporting the HW.1? I recently bought one and they work great IMO.