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Apps mycelium logo.png

Mycelium is a mobile Bitcoin wallet for Android and iOS, although Trezor is currrently supported only on Android device.

ImportantPlease keep in mind that we do not develop nor maintain third-party software, so we cannot guarantee their full functionality. However, your private keys are always safely protected by your Trezor device, no matter what third-party application you use it with.

Trezor user manual[edit]

Before you can start using Mycelium with your Trezor, make sure you have an OTG cable for connecting Trezor to your phone or tablet. Using Trezor with Mycelium is pretty straightforward.

How to use Mycelium with Trezor[edit]

Before you can start using Mycelium with your Trezor device, make sure you have an OTG cable for connecting the Trezor device to your phone or tablet. Using Trezor with Mycelium is pretty straightforward.

Importing account from Trezor[edit]

To import a Trezor account into Mycelium:

  1. Go to Accounts tab.
  2. Select Add New Account (key icon) > Advanced > Trezor.
  1. Connect your Trezor device and confirm access on your device.
  2. Enter your Trezor PIN (and passphrase, if enabled). The PIN is required only once per Trezor connection session.
  3. Wait until Mycelium loads all your Trezor accounts.
  4. Select a Trezor account the list to import it into Mycelium. Give it a name and wait until Mycelium synchronizes all the transactions and balance
  5. If you need to import more accounts, repeat the steps above.
  6. To import a new empty Trezor account, select Import next unused account... below the Trezor account list.
ImportantWithout Trezor device connected, imported accounts work in watch-only mode. You can check total balance, transaction history and display next unused receiving address, but you cannot send any transactions.

Sending transaction from Trezor directly[edit]

You can also send transactions directly from Trezor using Mycelium without importing it first. Just connect your Trezor and select Cold Storage from the app menu and choose Trezor. After Mycelium loads your Trezor accounts, select the one you want to spend from, enter the recipient address and the amount and finalize the transaction by checking and confirming it on your Trezor device.

Importing watch-only accounts from Trezor Wallet[edit]

If you want to use Mycelium as a watch-only wallet for your Trezor device, you can import accounts directly from Trezor Wallet.

To see how to export your account public key (XPUB) from Trezor Wallet, see Displaying account public key (XPUB).

  1. In Mycelium, go to Accounts tab > Add New Account (key icon) > Advanced > Scan
  2. Scan the QR code from Trezor Wallet (see Displaying account public key (XPUB)) to import the account.
  3. Give it a name and wait until Mycelium synchronizes it.

Once the account synchronizes, you will be able to check the account balance, transaction history and display the next unused receiving address. All without connecting your Trezor device to Mycelium or exposing your recovery seed or private keys

Additional resources[edit]

Properties and Features[edit]

Wallet property Description
Platform Android OS
Coin(s) Bitcoin
Languages English, Español, Deutsch, Français, Русский + more
Address Book Manage contact list of receiving and sending addresses
Labelling Add comments and labels to accounts and transactions

Trezor feature Description
Basic Setup Generate new wallet with recovery seed, set PIN and label device
Safe Recovery Recover Trezor by safely entering your recovery seed (12, 18 or 24 words)
Simple transactions Sign transaction with Trezor and confirm address and amount on display
Multisig transactions Sign multisignature transaction with Trezor
Hidden Wallets User can access hidden wallets behind arbitrary passphrases
Multiple Accounts Capable of creating and working with multiple accounts
Smart PIN Matrix Keylogger protection, displaying PIN matrix on Trezor display
Watch-only mode Remembering account, generating new receiving address with Trezor disconnected
Show on Trezor Phishing protection, validation receiving address on Trezor
Change PIN User can change Trezor PIN
Change Name User can change Trezor name
Custom Homescreen User can upload personalized default screen
Update Firmware Notify user and update firmware when a new version is available
Wipe device Erase private keys from Trezor
Sign Message Securely sign short text
Verify Message Securely verify short text
Fast Recovery Recover by directly loading seed into Trezor, fast but less safe way to recover wallet
Wallet Encryption Wallet can be decrypted and opened using Trezor only
Sign in with Trezor Trezor is used for online authentication without using username and password
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