1.Download and sign up MetaMask
If you have downloaded MetaMask, please skip to step 2. If you haven’t, please go to official web page to（https://metamask.io/) to install MetaMask for you browser.
After downloading MetaMask, please set up your password and recovery phrase(12 words).
Note: You would better copy these recovery phrase in somewhere safe, and do not tell anyone.
2.Connect to OEC Mainnet
Swith the connected blockchain by clicking on the tab saying Main Ethereum Network. You need to scroll down until you find Custom RPC.
You will see the OEC mainnet details as follows:
-Network Name：OEC Mainnet（could be customized）
-New RPC URL：https://exchainrpc.okex.org
-Chain ID： 66
-Symbol ：OKT（Latest version：If there is a transfer problem in Metamask of 9.5.2, please fill in ETH, and the actual gas consumption is still OKT）
-Blockchain Explorer URL：https://www.oklink.com/okexchain/
Enter all the details and click “Save”. You have now connectedto the OEC mainnet with your Metamask Wallet.
3.Deposit tokens to your MetaMask wallet
If you want to participate in OEC mainnet mining, you need to deposit money to your MetaMask wallet (including a part of OKT used for gas fee).
First of all, please set MetaMask wallet to OEC mainnet. When you hover over the account label, the massage “Copy to cliboard” should appear. Click on the account name to copy your address.
If your currency is on the exchange (take OKT as example），simply paste your address in the “recipient” field in the application, and click on “Continue”. If you deposit other tokens to the MetaMask wallet, the process is taken in the same way as OKT here.