> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://kb.secondfi.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Connecting a Hardware Wallet

SecondFi supports connecting a Ledger or Trezor hardware wallet for enhanced security. Your private keys remain on the hardware device at all times.

**Before you begin:** Make sure your hardware wallet device is powered on and unlocked before starting.

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## Setting Up a Hardware Wallet 

If you are setting up SecondFi fresh after re-installing the app:

1. On the Welcome screen, tap **I already have a wallet**.
2. On the Setup Wallet screen, tap **Hardware wallet**.
3. On the Connect device screen, choose your brand — **Ledger** or **Trezor** — and your connection method — **Bluetooth** or **USB**.
4. When your device appears in the list, select it and tap **Pair device**. If Bluetooth gives trouble, tap **Try USB instead**.

![](https://storage.crisp.chat/users/helpdesk/website/-/c/8/f/5/c8f55fdc3aec2000/secondfiwelcomerestoreconnects_1tlkpxr.png)

5. Once paired, follow the on-screen prompts to complete setup.

**If you are using a Ledger:** You will be prompted to open the relevant blockchain apps on your device. Open the **Cardano ADA** app first, then proceed with the other required network apps (Base, Bitcoin, Ethereum, and Solana) as shown in the SecondFi app. Follow the confirmation prompts on both your phone and your Ledger device.

**If you are using a Trezor:** No separate apps are needed. Trezor handles all supported networks from a single interface.

Once setup is complete, tap **Go to Dashboard**.

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## Supported Networks

Hardware wallet support covers: **Cardano, Base, Bitcoin, Ethereum, and Solana.**

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## Troubleshooting

* **Device not appearing?** Make sure your hardware wallet is powered on, unlocked, and Bluetooth is enabled on your phone. Try toggling Bluetooth off and on.
* **Bluetooth not working?** Tap **Try USB instead** and connect via cable.
* **Ledger app errors?** Ensure you have the latest firmware and the required blockchain apps installed on your Ledger device.

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> **Security reminder:** Your private keys never leave your hardware device. SecondFi will never ask you to share your recovery phrase or private key.

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