Airbitz Adds Foolproof Bitcoin Wallet Recovery Solution – The Merkle

Bitcoin wallet Recovery

Bitcoin Wallet / January 22, 2019

Ledger Nano S is a secure Bitcoin and Ethereum hardware wallet. It connects to any computer through USB and embeds a built-in OLED display to double-check and confirm each transaction with a single tap on its side buttons.

What crypto currencies are supported by the Nano S?

Crypto currencies are regularly added to the Nano S, so the list is always evolving. To add a new released coin, you need to install the app from the Ledger Manager (which manages firmware upgrade and app install/uninstall).

The current list of supported cryptos is:

  • Bitcoin
  • Ethereum / Ethereum Classic
  • Litecoin
  • Dogecoin
  • Zcash (z-addresses are not supported)
  • Dash
  • Stratis

The following cryptos are in our roadmap but not implemented yet:

All cryptos (except Ethereum) must be used with the Ledger Wallet Bitcoin Chrome application. Just launch it, select the crypto app on your device (by pressing both buttons) and the Chrome app will adapt to the currency you chose.

What are the differences with the Nano?

Nano S is the latest generation hardware wallet available from Ledger. There are many differences in the security architecture, the firmware and the available features. Nano S has a screen and two buttons. Everything is done directly on device: PIN entry, seed configuration, transaction validation. There is no need for an additional security card like for the Nano or HW.1. Furthermore Nano S can manage multiple applications such as Bitcoin, Ethereum or FIDO U2F (strong authentication).

How to confirm a transaction?

All transactions are confirmed directly on the device's screen. It will show the amount, the destination address and the fee. A confirmation button press is required by the user to proceed to the signature of the transaction.

When and how can I disconnect safely my Nano S?

Your need to have your Nano S connected only when you wish to browse your accounts or sign a transactions. Once a payment has been signed and sent, you can disconnect your Nano S. It is not necessary to have your Nano S online when waiting for a payment or waiting for a transaction's confirmation.

To disconnect the Nano S, just unplug it anytime. There is no ejection procedure.

How to reset the device and wipe the seed?

Enter three wrong PIN codes in a row. The device will then reset and wipe its seed. You'll have to recover your seed through your 24 words backup (or generate a new seed). If you wish to wipe your device on purpose, make sure that you either have the recovery sheet with you, or that you have moved all your crypto assets on another place.

Does Nano S support a passphrase on a seed?

Yes, see the dedicated FAQ entry at

Is Nano S based on a Secure Element?

Yes. Nano S is architected around two microprocessors. One secure chip (ST31 family) and one generic MCU (STM32 family). All private key management and critical code execution is done inside the Secure Element.

Why isn't it any anti-tampering sticker on the Nano S box?

Ledger is using cryptographic attestation to make sure that the devices you receive are genuine; A cryptographic procedure checks the integrity of the hardware wallet's internal software each time it is powered on. The Secure Element chip prevents any interception or physical replacement attemps.

Anti-tampering stickers are security theater: any attacker capable of reproducing a device can print new shiny stickers. Ledger's products are engineered to be natively tamper-proof and cannot be counterfeited.

Can I have my Nano S on a keychain?

Yes. Nano S has a foldable swivel cover which protects the device when attached to a keychain. You'll find everything you need in the box to securely attach your device.

What is "browser support" in the settings of crypto apps?

Browser support must be enabled if you wish to use a direct browser integration such as

To use your Nano S with the Chrome app, Electrum or Mycelium, browser support must be disabled.

Can Nano S manage Bitcoin and Ethereum?

Yes. Just select which app (Bitcoin/Ethereum) you whish to activate on the device, and launch the corresponding Chrome Wallet application on your computer.