Apps:MyEtherWallet

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Trezor Wiki/User/User manual/Apps/ MyEtherWallet
Apps mew logo.png

MyEtherWallet is an Ethereum web wallet which features a Trezor integration. You can use MyEtherWallet to control your ethers and ERC20 tokens stored in your Trezor.

How to use MyEtherWallet with Trezor

This guide assumes that your Trezor has already been initialized, i.e. you have been using it with Trezor Wallet or some other third-party services. If not please, see Setting up the Trezor device.

ImportantWhen using MyEtherWallet with Trezor, do NOT click on Generate a new wallet. Your Ethereum wallets are generated directly on your Trezor, when you connect it to MyEthereumWallet following this guide. Generating a new wallet would create an entirely new web wallet not protected by your Trezor.

Viewing Ethereum wallet

  1. First, make sure you are using the correct cryptocurrency. You can select from a variety of Ethereum-based tokens in the top-right corner of the screen. Ethereum is used for the purposes of this manual.
Apps-MyEtherWallet-ChoosingToken.png
  1. Go to the Send Ether & Tokens tab.
  2. In "How would you like to access your wallet?", select Trezor.
  3. Click on Connect to Trezor
  4. Trezor Connect prompt will pop up, asking you to plug in your Trezor device. Enter your PIN and Passphrase (if you have it enabled).
  5. Trezor Connect will ask you to export your public key for your Ethereum account #1. This is necessary so that MEW can load your accounts and read their balance.
  6. In the next window, you can see HD path derivations and Ethereum addresses with their balances. Set the derivation path to m/44'/60'/0'/0 for using Ethereum with Trezor.
  7. Apps-MEW-addressDerivationPath.png
  8. Use the addresses to receive ethers in your Trezor. All of the addresses are generated by your Trezor, using your seed. Any ethers sent on these addresses will be controlled and protected by your Trezor.
  9. If you would like to spend your ethers, you can continue by selecting an address you want to use to spend funds from and confirm by clicking on Unlock wallet.

Sending transactions

In the Send Ether & Tokens tab, you can continue with these steps to generate a transaction.

  1. Enter the transactions details (address, amount to send, gas limit) and click on Generate Transaction.
  2. A Trezor Connect prompt asks you to confirm the transaction on your Trezor. (Your Trezor has been unlocked in the previous stage.)
  3. Unlike transactions in Trezor Wallet, the transaction is not sent yet, even after confirming it on the device. The signed data from Trezor will be transmitted back to MEW for additional confirmation. The funds only leave your account once you click on Send Transaction.

For more information about how to use MyEtherWallet, see the knowledge base of the company.