How to use MetaMask?

Through the MetaMask feature, CoolWalleters can now explore the Web 3.0 world safely and seamlessly!

1. Specification requirements

• Exclusive on CoolWallet Pro
• Web camera required (or external webcam with autofocus feature)
• Can only be paired with MetaMask Browser Extensions (e.g. Chrome, Firefox, Brave, Edge)

2. Step-by-step guide

For a complete step-by-step guide, please refer to the link here:

• MetaMask - Step-by-step guide

3. Supported Networks & Adding RPCs

The MetaMask feature supports Ethereum, Arbitrum, Polygon, BNB Chain (BSC) & Avalanche C-Chain. You can switch among these networks by adding RPCs. To add RPCs, please check the guides below:

1. Click on "Ethereum Mainnet" (Default) > "Add Network"

2.  Input the network RPC information that you want to add into MetaMask

a. Arbitrum

• Network Name: Arbitrum
• New RPC URL: https://arb1.arbitrum.io/rpc
• Chain ID: 42161
• Currency Symbol: ETH
• Block Explorer URL: https://arbiscan.io

b. Polygon

• Network Name: Polygon
• New RPC URL: https://polygon-rpc.com
• Chain ID: 137
• Currency Symbol: MATIC
• Block Explorer URL: https://polygonscan.com/

c. BNB Chain (BSC)

• Network Name: Smart Chain
• New RPC URL: https://bsc-dataseed.binance.org/
• Chain ID: 56
• Currency Symbol: BNB
• Block Explorer URL: https://bscscan.com

d. Avalanche C Chain

• Network Name: Avalanche Network
• New RPC URL: https://api.avax.network/ext/bc/C/rpc
• Chain ID: 43114
• Currency Symbol: AVAX
• Block Explorer URL: https://snowtrace.io/

e. Optimism

• Network Name: Optimism
• New RPC URL: https://mainnet.optimism.io
• Chain ID: 10
• Currency Symbol: ETH
• Block Explorer URL: https://optimistic.etherscan.io/
  
  

3. Click on "Save" once you finished. (Arbitrum network as an example)

4. Adding tokens to MetaMask

Once you have added RPCs, you can manage your assets on these networks. Import tokens if you need to. Simply visit the following explorers, find the specified token contract address, copy, and paste it on MetaMask, and you're all set!

• Ethereum Explorer: https://etherscan.io/
• Arbitrum Explorer: https://arbiscan.io/
• Polygon Explorer: https://polygonscan.com/
• BSC Explorer: https://bscscan.com/
• Avalanche C-Chain Explorer: https://snowtrace.io/

5. Forget this device

MetaMask extension only accepts one hardware wallet at a time. Tap "Forget Device" before you attempt to synchronize another hardware wallet.