I. Three Core Solutions for Domestic Access Platforms in 2025#
1.1 Official Domain Direct Connection (Recommended)#
Manually enter https://ouyijoin.com to access directly, which is the safest and most reliable official entry method.
II. Device-Specific Download and Installation Tutorial (2025 Latest Version)#
2.1 Android Users: Bypass System Restrictions for Installation#
Step 1: Obtain Installation Package
Visit the official website of 欧易, register, and download the APK file.
Step 2: Permission Settings
Go to "Settings" → "Application Management" → "Special Application Permissions" → "Install Unknown Apps," and grant the browser installation permissions.
Step 3: Complete Installation
Click on the APK file to install; the first launch requires authorization for necessary permissions such as network and storage.
2.2 iOS Users: Overseas Apple ID Practical Guide#
| Step | Operation Description |
|---|---|
| Register Overseas ID | Select "Hong Kong" on Apple's official website, fill in the address as the University of Hong Kong, and choose "None" for payment method |
| Switch Account | Log out of the domestic Apple ID and log in to the newly registered overseas account |
| Search and Download | Search "OKX" in the App Store, with the developer displayed as "OKX MALTA LTD" indicating it is the official version |
| Usage Maintenance | After downloading, you can switch back to the domestic Apple ID without affecting the normal operation of the APP |
III. Real Name Authentication and Security Settings (2025 New Regulations)#
3.1 Account Registration (Complete in 3 Minutes)#
Step 1: Fill in Basic Information
Open the APP and click "Register," choose an email (recommended Gmail/Outlook) or +86 mobile number.
Step 2: Verification Code and Password
Enter the verification code and set a 12-character password that includes uppercase and lowercase letters, numbers, and symbols.
Step 3: Select Residence
Select "China" as the residence and read and check the user agreement.
IV. Full Process Analysis of Purchasing Digital Currency with RMB#
4.1 Fiat Currency Deposit (C2C Trading)#
Step 1: Enter Fiat Account
After logging in, click "Assets" → "Fiat Account," and choose Alipay/WeChat/Bank Card for payment.
Step 2: Set Purchase Parameters
Enter the amount (suggest ≤1000 yuan for the first time), and the system will automatically match merchants with 0 negative reviews.
Step 3: Complete Payment
When transferring, note the order tail number, click "I have paid," and wait for the release of funds (usually completed within 5 minutes).
4.2 Purchase Mainstream Coins (Two Options)#
Option A: Flash Exchange Function (Zero Slippage)
Click "Flash Exchange" on the homepage, select "USDT to BTC/ETH"
Enter the purchase amount, real-time exchange rate settlement, funds arrive instantly
Option B: Spot Trading (Depth Priority)
Enter "Trading" → "BTC/USDT" trading pair
Choose "Market Order" to trade at the best price, or "Limit Order" to set a psychological price
After the transaction, you can view positions in the "Funds Account"
V. Advanced Strategies for Asset Security Management#
5.1 Storage Solution Selection#
Short-term Holding: Enable the platform's "Multi-signature Cold Wallet" function (Path: Assets → Cold Wallet Custody)
Long-term Coin Holding: Use a hardware wallet (recommended Ledger Nano X), with the mnemonic phrase engraved on a titanium plate
5.2 Risk Control Configuration#
Anti-Phishing Code: All official notifications contain a 6-digit exclusive verification code
Withdrawal Whitelist: Only allow transfers to pre-bound addresses
Password Update: Update the login password in the "Security Center" every 90 days
Experience Now: https://ouyijoin.com Official Registration Entry