> For the complete documentation index, see [llms.txt](https://help.tpwallet.io/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tpwallet.io/en/wallet-operation/tptool/eip-4527/metamask.md).

# How to Use MetaMask

### **What is EIP-4527?**

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**

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="/files/kwDbh73oBe8o0masSyZg" 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="/files/Vgb24UkhveLb7g6Ubzn7" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/m6ZuMwGQuLMm6QN5aLxy" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/CieA2ZF47PchUSySclhy" 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="/files/eRogHGNqVuEEl5xvx1dx" 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.