How to Use Rainbow Wallet for Ethereum? Beginner Guide

Wallet Initialization and Security Setup

1. Download the official Rainbow wallet application from its verified repository at https://gitcode.com/gh_mirrors/ra/rainbow.

2. Launch the app and select “Create New Wallet” to generate a fresh cryptographic identity.

3. Carefully write down the 12-word recovery phrase on physical medium—no digital storage is permitted.

4. Confirm the phrase by re-entering it in randomized order to verify memorization and accuracy.

5. Set a strong biometric or passcode lock to prevent unauthorized device-level access.

Asset Management and Token Customization

1. Navigate to the Assets tab to view all ERC-20 tokens and NFTs associated with your address.

2. Tap “Add Token” and search by name, symbol, or contract address to manually include unsupported assets.

3. Long-press any token row to hide it from the main balance view without removing it from the blockchain record.

4. Toggle between fiat-denominated values and raw token units using the display switch in the top-right corner.

5. Enable real-time price alerts for specific tokens through the token detail screen’s bell icon.

Transaction Execution and Gas Optimization

1. Use the SendSheet interface to input recipient addresses—ENS names are auto-resolved and validated instantly.

2. Select asset type: native ETH, ERC-20 tokens, or NFTs—with balance checks performed before confirmation.

3. Adjust gas settings manually via slider: “Slow”, “Average”, or “Fast”, each reflecting live network conditions.

4. Preview transaction impact using built-in simulation—this reveals potential state changes and contract reverts.

5. Sign with device-native cryptography or route signing through Ledger Nano when hardware integration is active.

DeFi Interaction via WalletConnect

1. Open a dApp like Uniswap or Aave and click “Connect Wallet”, then choose WalletConnect.

2. Scan the generated QR code using Rainbow’s WalletConnect scanner or paste the URI manually.

3. Review requested permissions: read balance, approve token spending, execute calls—reject overreaching scopes.

4. Approve session initiation only after verifying dApp domain and network alignment (e.g., Ethereum Mainnet vs Arbitrum).

5. Manage active sessions under Settings > WalletConnect > Active Sessions to revoke stale or suspicious connections.

Smart Contract and Message Signing

1. When prompted by a dApp or governance platform, Rainbow displays SignTransactionSheet for cryptographic attestations.

2. Distinguish between personal_sign (human-readable messages) and sign_typed_data (structured data with domain separation).

3. Hardware wallet users see explicit on-device prompts—no signature occurs unless confirmed physically on Ledger.

4. Transaction payloads are decoded and rendered in plain English before signing, exposing function calls and parameter values.

5. Reject unsigned transactions that lack full payload visibility or originate from unrecognized domains.

Frequently Asked Questions

Q: Can I import an existing MetaMask wallet into Rainbow?A: Yes—select “Import Wallet” during setup and enter your 12-word seed phrase. Private keys or keystore files are not accepted.

Q: Does Rainbow support Layer 2 networks like Optimism or Base?A: Yes—network selection appears during WalletConnect initiation and within Settings > Networks. All EVM-compatible chains are accessible.

Q: What happens if I lose my phone but retain the recovery phrase?A: You can fully restore all assets and transaction history on any new device by importing the phrase into Rainbow or any BIP-39 compliant wallet.

Q: Is there a way to limit token approval amounts for dApps?A: Rainbow does not offer granular allowance controls natively; users must interact with third-party tools like Revoke.cash or directly call decreaseAllowance() on-chain.