How to Deposit Native USDT in the OneKey App

Depositing Native USDT into DeFi Earn through the OneKey App involves four main steps: preparing your wallet, confirming the USDT chain version, entering the Earn section, and completing the approval and deposit. Throughout the entire process, assets remain under your private key's control.

Why It Matters

Depositing Native USDT is the first step in participating in OneKey DeFi Earn products — and the step most prone to errors from unfamiliarity. Common mistakes include: sending the wrong chain's USDT to the protocol (e.g., sending Tron USDT to an Ethereum protocol), failing transactions due to insufficient gas, and creating security exposure by not carefully reviewing the approval scope. This article provides a complete walkthrough to help you avoid these issues.

Core Mechanics and Key Concepts

Confirming the Native USDT Chain Version

USDT is natively issued on multiple blockchains and different versions cannot be directly exchanged with each other:

• USDT on Ethereum (ETH): Contract address 0xdAC17F958D2ee523a2206206994597C13D831ec7
• USDT on Tron: TRX network native version (address format starts with T)
• USDT on Solana: SPL Token standard version

Before depositing, you must confirm that the USDT in your wallet matches the chain of the OneKey Earn product you are using. Confusing chain versions is a common cause of asset loss.

The Approval (Approve) Mechanism

When interacting with a DeFi protocol, the first step is typically an approval: allowing the protocol's smart contract to transfer a specified amount of USDT from your wallet. This is not a transfer — it is granting the contract "transfer permission":

• Set an exact approval amount rather than an unlimited approval, to limit potential loss if the contract is exploited
• The approval transaction itself requires gas
• Approval history can be viewed and managed at Revoke.cash

Preparing for Gas Fees

Regardless of which chain you use, you need to hold a small amount of that chain's native token to pay gas fees:

• Ethereum: requires ETH
• BNB Chain: requires BNB
• And so on for other chains

Ensure your wallet holds enough gas tokens before depositing USDT. If a transaction fails due to insufficient gas, the gas is consumed and cannot be refunded.

For foundational knowledge on Ethereum accounts and gas, refer to the Ethereum accounts documentation.

Step-by-Step Instructions

Step 1: Download and Set Up the OneKey App

1. Visit the OneKey official download page and select the version for your device (iOS / Android / desktop)
2. After installation, choose to create a new wallet or import an existing one
3. Follow the prompts to securely save your recovery phrase (store offline; never screenshot or upload to the cloud)
4. Complete wallet initialization

Step 2: Fund Your Wallet with Native USDT

Method A: Withdraw from an exchange

1. Initiate a USDT withdrawal on the exchange
2. Critical step: when selecting the withdrawal network, match the chain of the OneKey Earn product (e.g., select ERC20 for Ethereum)
3. Paste the corresponding wallet address from the OneKey App
4. Confirm the withdrawal and wait for arrival (typically 5–30 minutes)

Method B: Transfer from another wallet

1. In the OneKey App, switch to the corresponding network and copy the receiving address
2. Initiate the transfer from the original wallet, confirming the chain network matches

Step 3: Prepare Gas Fees

1. In the OneKey App, confirm your wallet holds a small amount of the gas token (e.g., ETH)
2. If not, withdraw a small amount of ETH from an exchange or purchase it using the swap function within the App

Step 4: Enter the Earn Section and Deposit

1. Open the OneKey App and tap Earn in the bottom navigation
2. Find the Native USDT or USDT Earn product in the product list
3. Tap to open and review product details: current APY, protocol description, risk disclosure
4. Tap the Deposit button
5. Enter the deposit amount (recommend a small test amount for your first deposit)
6. Review the approval request details and confirm the approval amount is reasonable, then tap Confirm Approval
7. Review the deposit transaction details (gas fee, deposit amount, target contract) and tap Confirm Deposit
8. Wait for on-chain confirmation (typically a few minutes)

Step 5: Confirm Deposit Success

1. Return to Earn → My Positions
2. Confirm the USDT balance has updated and the deposit status shows as "Deposited"
3. Yield will begin accruing automatically

OneKey App Access

Visit the OneKey website for a complete introduction to the App's features, or download the OneKey App directly to get started.

Risks and Considerations

• Address errors are irreversible: On-chain transfers cannot be undone once confirmed. Always double-check the contract address and network before depositing.
• Start with a small test deposit: Run through the complete flow with a small amount of USDT first to confirm everything works before depositing a larger sum.
• Only download from official sources: Download the App exclusively from the official OneKey website to guard against phishing. See OWASP's phishing attack reference for background.
• Smart contract risk: Deposited funds are managed by the protocol's smart contract. Contract risk and OneKey software risk are independent of each other.
• Yield rate changes: APY will fluctuate after depositing. Past yield performance does not represent future returns.
• Approval management: After completing your operations, periodically check and clean up contract approvals you no longer need at Revoke.cash.

FAQ

Q1: How do I confirm I'm depositing Native USDT on the correct chain? A: The product detail page in the OneKey App specifies the supported network. Before depositing, confirm that the USDT displayed in your wallet's asset list shows the correct chain identifier (e.g., "ERC20" or "Ethereum") matching the product requirement.

Q2: How soon after depositing does yield start accruing? A: Yield typically begins accruing as soon as the deposit transaction is confirmed on-chain. Some protocols accrue per block; others settle daily. Check the specific product description.

Q3: What if the App crashes mid-deposit? A: Reopen the App and check your transaction history for the status of the most recent transaction. If the transaction has been submitted on-chain, enter your wallet address on a blockchain explorer (e.g., Etherscan) to check the confirmation status.

Q4: Can I make multiple deposits? A: Yes. Each deposit is an independent on-chain transaction with its own gas fee. Your total position balance accumulates across all deposits.

Q5: How long does withdrawal take? A: Most lending protocols support instant redemption. Submit the withdrawal transaction and wait for on-chain confirmation (typically a few minutes). Some protocols have lock-up periods — check the product description.

Take Action

Ready to participate in Native USDT Earn? Download the OneKey App now and follow the steps in this guide to complete your first deposit. For your first attempt, a small test amount of USDT (e.g., 10–50 USDT) is recommended to experience the full flow before scaling up based on your own judgment. Visit the OneKey website for more product information.