---
title: How to update your dApp for Ledger Wallet
catgory: how-to
---

> **Key takeaway:**  ☞   The renaming of "Ledger Live" to "Ledger Wallet" and\
>      "wallet" (in the hardware sense) to "signer" is still in progress.\
>      This page may contain legacy references that will be updated.

# How to update your dApp for Ledger Wallet

This guide shows you how to adapt your dApp to detect  environment and optimize the user experience.

One of the most useful features of this dApp Browser is to be able to log-in automatically from a  Ethereum account, therefore obviating the step to manually "Connect a Wallet".

## Step 1: Detect Ledger Wallet connection

Check if your dApp is running in  by detecting the `isLedgerLive` boolean:

```javascript
// Check the injected provider
if (window.ethereum?.isLedgerLive) {
  // User is in <Glossary word='Ledger Wallet'></Glossary> - enable auto-connection
} else {
  // Show standard wallet connection options
}

// Or via EIP-6963
const providers = window.evmproviders;
const ledgerProvider = providers?.find(p => p.info.isLedgerLive);
```

## Step 2: Handle gas fees

Submit transactions with optional gas fees:

- **With gas fees set**:  uses your specified gas fees
- **Without gas fees set**:  shows low/medium/high gas fee options based on current estimates

## Step 3: Optimize user experience

### Handle disconnection properly

Test your logout/disconnect functionality:

- Users may be automatically logged back in via Ledger Wallet
- Or redirected to standard wallet provider selection

### Ensure network compatibility

Support these networks ( compatible):

- **Mainnets**: Ethereum, BSC, Arbitrum, Optimism, Base, Fantom, Polygon
- **Testnet**: Sepolia (requires [Developer mode](../../references/developer-mode) enabled)

### Remove third-party references

- Remove references to external services not in Ledger's ecosystem
- You can redirect to  Buy or Swap services

### Make it responsive

Ensure your dApp works on:

- Desktop screens
- Mobile screens

## What's next

After updating your dApp, you will need to:

- **[Write a manifest](./manifest.mdx)** - Create a manifest file containing your dApp's metadata, supported networks, permissions, and configuration settings to integrate it into Ledger Wallet's Discover section.
- **[Write a plugin](./plugin.mdx)** - Develop a plugin for Clear Signing if your dApp has complex smart contract interactions that need human-readable transaction details (requires Ledger approval and security audit).