How to Swap BNB for Another Token in Trust Wallet

Accessing the DEX Interface

1. Open Trust Wallet and ensure your BNB Smart Chain (BSC) network is selected in the network settings.

2. Tap the Swap icon located at the bottom navigation bar — this launches the built-in decentralized exchange interface.

3. Confirm that the wallet is connected to the BSC mainnet; incorrect chain selection may prevent token visibility or transaction execution.

4. The interface automatically detects your wallet balance, including BNB and any tokens already held on BSC.

5. No external browser or third-party dApp connection is required — the swap functionality operates natively within the app using PancakeSwap’s router contracts.

Selecting Input and Output Tokens

1. Tap the input field labeled “From” and verify that BNB is selected as the source asset.

2. Tap the output field labeled “To” and search for the target token by name, symbol, or contract address.

3. If the token does not appear in the default list, use the “Import Token” option and manually enter its BSC contract address.

4. Trust Wallet validates token metadata on-chain and displays logo, decimals, and verified status when available.

5. Cross-check the contract address against sources like BscScan to avoid counterfeit tokens.

Configuring Swap Parameters

1. Enter the desired amount of BNB to swap — the interface instantly calculates the estimated output based on current liquidity pool reserves.

2. Adjust slippage tolerance using the gear icon; standard values range from 0.5% to 3%, depending on token volatility and pool depth.

3. Set transaction deadline — default is usually 20 minutes, but can be modified to accommodate network congestion.

4. Gas fee estimation appears in real time, denominated in BNB; fees are dynamically calculated using BSC’s EIP-1559-like mechanism.

5. A price impact indicator shows how the trade size affects the quoted rate — values above 5% suggest low liquidity or high risk of impermanent loss exposure.

Approving and Executing the Transaction

1. Tap “Preview Swap” to review all parameters including recipient contract, input/output amounts, and gas cost.

2. If swapping into a new token for the first time, an approval transaction must be signed before the swap — this grants the router contract permission to transfer your BNB.

3. Approval transactions consume separate gas and appear as distinct entries in your transaction history.

4. After approval confirmation, tap “Confirm Swap” and authenticate with your wallet password or biometric prompt.

5. The transaction hash is displayed immediately upon broadcast; status updates appear in real time without requiring manual refresh.

Troubleshooting Common Issues

Q: Why does my swap fail with “Insufficient BNB for gas” even though I have BNB in my wallet?A: This occurs when the BNB balance is held in a BEP-20 token wallet rather than the native BNB balance. Native BNB must reside in the wallet’s base balance — not as a BEP-20 wrapper — to cover gas fees.

Q: Why is the target token not showing up despite correct contract address entry?A: The token may lack verified metadata on Trust Wallet’s token list or have incompatible decimal precision. Manually entering decimals and symbol may resolve display issues.

Q: Can I cancel a pending swap transaction?A: No. Once broadcast to the BSC mempool, the transaction cannot be canceled. Users may attempt to replace it with a higher-gas transaction using the same nonce.

Q: Why does the estimated output change significantly between preview and confirmation?A: Price movement during the approval step or front-running bots altering pool reserves before execution causes this discrepancy. Higher slippage tolerance reduces failure likelihood but increases execution risk.