Guide: Use TREZOR with MyEtherWallet!

TREZOR has officially supported Ethereum since the firmware update to version 1.4.0. If you are using FW from 1.4.0 and above, you should be all set to use MyEtherWallet with TREZOR. For your convenience, we have prepared a short guide to introduce you to the main steps.

If you haven’t updated to FW 1.4.0 or higher yet and want to use these features, please follow this guide.

Viewing Your Ethereum Wallet

This guide assumes that your TREZOR has already been initialized and used on TREZOR Wallet, Electrum or Mycelium. If your TREZOR device is not configured yet (i.e. you haven’t used it with any application yet), please visit TREZOR Wallet to initialize it first.

First, let’s open myetherwallet.com (MEW). Make sure you are using the correct currency. The selector is in the top-right part of MyEtherWallet.

Since your TREZOR is already initialized, the Ethereum wallets have already been generated on the device. You are using MEW only to access them. Therefore, you can go to “View Wallet Info” or “Send Ether & Tokens” immediately.

Do not generate a new wallet on MyEtherWallet. Your TREZOR is your Ethereum wallet. If you have generated a new wallet on MyEtherWallet, then those coins that you have sent there are NOT saved with your TREZOR seed.

Select “TREZOR” and then click on “Connect to TREZOR”.

TREZOR Connect prompt will pop up, asking you to plug in your TREZOR device. Enter your PIN and Passphrase (if you have it enabled). Then, Connect will ask you to export your public key for Ethereum account #1. This is necessary, so that MEW can load your accounts and read their balances.

This window will show your TREZOR accounts/addresses and their ETH/ETC balances. Unlock for more information.

In the next window, you can see your ether addresses and their balance. You should use these addresses to receive ethers into your TREZOR. Each of the addresses is a separate account; always use one for a certain action, since you cannot spend coins from Account 1 when you are using Account 2.

This is it — you are viewing your Ethereum accounts which are stored on your TREZOR. If you would like to view your token balances as well, select an account and click on “Unlock”.

In newer MEW versions, you will also be asked to choose a derivation path. You should always opt for the default one that MEW chooses for you. If you are transferring from a different Ethereum wallet with a different derivation path, you may use this feature to transfer your coins to your TREZOR. Please contact our Support Team for assistance. The default derivation paths used by TREZOR for ETH/ETC are as follows: ETH: m/44'/60'/0'/0/i

ETC: m/44'/61'/0'/0/i (We recommend using the change index, even though ETH/ETC do not have change addresses)

You will be brought to a page with Account details. From here, you can also continue with with the sending process, if you would like to.

Sending Transactions

If you had chosen “Send Ether & Tokens”, you can continue from where we have left off in the previous section. If you had chosen “View Wallet Info”, please select “Send Ether & Tokens”, unlock TREZOR and select an account.

At this stage, you are ready to send transactions. Enter the details, such as the amount to send and the gas limit (transaction fee) and click on “Generate Transaction”.