Connect with MetaMask (QR-based)

MetaMask supports EVM-compatible blockchains (those that run smart contracts) and is widely used across various DApp platforms. In addition to its built-in accounts, MetaMask also supports a QR-based protocol for integrating with hardware wallets.

The D'CENT app utilizes this QR-based protocol to enable seamless integration between D'CENT accounts (EVM-compatible) and MetaMask.

Download and Install MetaMask

First, download the MetaMask Chrome extension from (https://metamask.io/download/) and follow its instructions to install.

How to connect D’CENT Wallet with MetaMask

[Step 1] Preparing to connect with MetaMask in the D’CENT App

1) After running the D’CENT App, enter the "Discovery" tab.

2) Select "MetaMask Integration" from the list.

3) Tap on "Go" button.

4) On the MetaMask integration screen, click on "Connect Metamask account" button.

5) Select the account to be linked from the account selection list and click on "Connect" button.

6) After confirming that the QR code is generated, Proceed to [Step 2].

[Step 2] Connect the D'CENT Wallet by scanning the QR code on your computer

1) On the MetaMask main screen, click the "Account" button at the top center.

2) Select "Add Account or Hardware Wallet", then click "Add Hardware Wallet".

3) After selecting "QR-based", click the "Continue" button at the bottom.

4) It switches to the QR code scanning page.

5) Scan the QR code prepared in [Step 1] using the camera on your computer.

6) When the QR code scan is completed normally, it will be converted to the account selection page.

7) On the account selection page, select First account and click "Unlock".

(In the case of a D’CENT account, it doesn’t matter which account you choose because all the accounts shown in the QR scan list are the same.)

8) You can check the page where the account of the D’CENT wallet and the MetaMask are linked.

Example of how to send ETH using MetaMask

[Step 1] Create ETH transaction with MetaMask

1) On the MetaMask main screen, click the "Send" button.

2) Enter the recipient’s wallet address, then click "Continue" button.

3) Input the amount you wish to send, then click "Continue" button and review the transaction details. Click "Confirm" to proceed. (You can adjust the transaction fee limit by selecting the "Edit" option.)

4) The screen will switch to a QR code format for the signature request.

[Step 2] Create a signature for the transaction using the D’CENT App

There are two ways to scan the signature request QR code:

1) From D'CENT App, go to the "Discovery" tab and Click on "Metamask QR Scan" button.

2) Alternatively, tap the "QR Scan" button in the top left corner of the "Discovery" tab.

3) When the QR scanning screen appears, scan the signature request QR code generated in [Step 1].

4) Verify the recipient address, then tap "Continue".

5) Check if the transaction details match the request from MetaMask, then tap Sign.

6) If you are using a biometric cold wallet, carefully review the displayed information once more. If everything is correct, press "OK", then enter your fingerprint or PIN.

7) If you are using an app wallet, enter the 6-digit password you set when you first launched the app.

8) After signing, you can check the signature in QR code format.

[Step 3] Sending signed data to MetaMask

1) Click the "Get Signature" button on the signature request page completed in [Step 1].

2) Scan the QR code prepared in [Step 2] using the camera on your computer.

3) Once the QR code scan is completed, go to the Activity tab in MetaMask to view the transaction details.