How to enable "Developer Mode" in Trust Wallet? (DApp Testing)

Accessing Developer Mode Interface

1. Open the Trust Wallet application on your mobile device.

2. Navigate to the Settings section by tapping the gear icon located in the top-right corner of the main wallet screen.

3. Scroll down and locate the Advanced option — this is typically found near the bottom of the settings menu.

4. Tap on Advanced to reveal additional configuration toggles and experimental features.

5. Look for the toggle labeled Developer Mode and enable it by sliding the switch to the right.

Understanding Developer Mode Permissions

1. Enabling Developer Mode grants access to low-level network configurations not exposed in standard mode.

2. It allows manual addition of custom RPC endpoints, essential when testing DApps deployed on testnets like Sepolia or Base Goerli.

3. The mode unlocks the ability to view raw transaction data, including input calldata and contract interaction traces.

4. Users gain visibility into pending transactions before confirmation, including gas estimation breakdowns and nonce inspection.

5. Debugging tools such as EIP-712 signature previews become available for verifying structured message signing behavior.

Connecting to Custom Testnets

1. After enabling Developer Mode, return to the Networks section inside Settings.

2. Select Add Network and choose Custom RPC instead of predefined options.

3. Input required fields: Network Name, RPC URL, Chain ID, Symbol, and Block Explorer URL — all must match the target testnet specification.

4. Save the configuration and confirm the new network appears in the active network list with its corresponding icon.

5. Switch to the newly added network to begin interacting with deployed smart contracts or frontend interfaces using that chain’s context.

Testing DApp Interactions Safely

1. Launch a DApp via the built-in browser or external link while connected to a testnet enabled through Developer Mode.

2. Observe how Trust Wallet handles wallet connection requests, especially differences in permission scopes compared to mainnet flows.

3. Monitor signature prompts for contract calls — verify whether the displayed method name and parameter values align with expected ABI decoding.

4. Initiate simulated transactions using test tokens from faucets and inspect the resulting transaction hash and status updates in real time.

5. Use the Transaction Details page to cross-check gas used, effective gas price, and internal operations triggered during execution.

Frequently Asked Questions

Q: Does enabling Developer Mode expose my private keys?A: No. Developer Mode does not alter key storage mechanisms or grant external access to cryptographic material. All signing occurs locally within the secure enclave.

Q: Can I use Developer Mode to interact with local Hardhat or Foundry nodes?A: Yes. As long as the local node exposes an HTTP RPC endpoint accessible from your mobile device’s network, you can configure it as a Custom RPC network.

Q: Why does Trust Wallet require restarting after enabling Developer Mode?A: Certain UI components and background services reload only upon app restart to ensure feature flags are properly initialized across all modules.

Q: Is Developer Mode available on desktop versions of Trust Wallet?A: No. Developer Mode is currently restricted to iOS and Android mobile applications due to platform-specific implementation constraints.