# How to Use MetaMask

### **What is EIP-4527?** <a href="#what-is-eip-4527" id="what-is-eip-4527"></a>

EIP-4527 (Ethereum Improvement Proposal 4527) is a standard designed for the Ethereum ecosystem, aimed at achieving secure and transparent data transfer between offline signers (such as hardware wallets or offline mobile wallets) and watch-only wallets using QR codes. It provides a standardized process and protocol to ensure users can securely sign transactions or data without connecting to the network.

### **TokenPocket Usage Tutorial** <a href="#tokenpocket-usage-tutorial" id="tokenpocket-usage-tutorial"></a>

1. Open TokenPocket, click on \[Details], and select \[Link Other Wallet]. Only wallets imported or created using mnemonic phrases can be displayed.

<figure><img src="https://help.tpwallet.io/~gitbook/image?url=https%3A%2F%2F2634619309-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F3qtItoZih7cEdFc6kPNk%252Fuploads%252FioBmQdjPucBmMEQHKsUA%252F1.png%3Falt%3Dmedia%26token%3D4df4237d-f80e-4d9b-b16f-a2ca3de7a849&#x26;width=768&#x26;dpr=4&#x26;quality=100&#x26;sign=3fdd9c59&#x26;sv=2" alt=""><figcaption></figcaption></figure>

2. The QR code display for connecting wallets requires \[Password Verification]. After verification, you can see the QR code. The interface allows you to view the QR code content. Below is a tutorial for interacting with wallets supporting EIP-4527. Other wallets supporting 4527 have similar interaction methods.

<figure><img src="https://help.tpwallet.io/~gitbook/image?url=https%3A%2F%2F2634619309-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F3qtItoZih7cEdFc6kPNk%252Fuploads%252F810EK5ecOrQJByPtp9OJ%252F2.png%3Falt%3Dmedia%26token%3Df1043729-a336-4b35-a1c8-3a8cc69e8f6a&#x26;width=768&#x26;dpr=4&#x26;quality=100&#x26;sign=59567da3&#x26;sv=2" alt=""><figcaption></figcaption></figure>

3. Open the Metamask wallet, click on the top menu, and select \[Add Account or Hardware Wallet].

<figure><img src="https://help.tpwallet.io/~gitbook/image?url=https%3A%2F%2F2634619309-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F3qtItoZih7cEdFc6kPNk%252Fuploads%252FeXQ2zKyzSgBRklwDJqlG%252F1.png%3Falt%3Dmedia%26token%3D8c6bf86b-3363-4d8d-b5f0-55047262dbcc&#x26;width=768&#x26;dpr=4&#x26;quality=100&#x26;sign=35804a30&#x26;sv=2" alt=""><figcaption></figcaption></figure>

4. Choose \[Add Hardware Wallet], QR-based.

<figure><img src="https://help.tpwallet.io/~gitbook/image?url=https%3A%2F%2F2634619309-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F3qtItoZih7cEdFc6kPNk%252Fuploads%252Fv3CYVwzFsZnSFQZnxyJL%252F2.png%3Falt%3Dmedia%26token%3Df74b4bf1-806f-4359-9dbc-e1530af46407&#x26;width=768&#x26;dpr=4&#x26;quality=100&#x26;sign=a83822e4&#x26;sv=2" alt=""><figcaption></figcaption></figure>

5. Click \[Continue] at the bottom. The wallet import uses the default display/selection method for sub-wallets. After checking the addresses you need to import, click \[Unlock] to see the status of the imported watch-only wallet.

<figure><img src="https://help.tpwallet.io/~gitbook/image?url=https%3A%2F%2F2634619309-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F3qtItoZih7cEdFc6kPNk%252Fuploads%252F7hLwKtekyx7TC0rCXkwq%252F3.png%3Falt%3Dmedia%26token%3Dec8508db-8ee4-4fd7-9959-ea54ade98e73&#x26;width=768&#x26;dpr=4&#x26;quality=100&#x26;sign=976a6f37&#x26;sv=2" alt=""><figcaption></figcaption></figure>

6. When execution is needed, a scan interface will pop up after normal operations. This operation is the same as using a cold wallet and watch-only wallet for scanning.

The Metamask mobile version does not have an entry for displaying the QR code for the 4527 solution. If you see a similar entry in the plugin wallet, you can follow similar steps to proceed.