First download MathWallet app：https://www.mathwallet.org
Create/import OKExChain wallet
Switch to OKExChain wallet
Click Create Wallet (Please store carefully your mnemonic phrases)
When mnemonic verification is completed, the wallet creation is done
OKExChain DApp
Click DApps to check OKExChain DApp
Contact us：
Telegram: https://t.me/mathwallet
Email：Hello@mathwallet.org
Twitter: @MathWallet