If you have a ledger device that you have been using to keep your NEO or Ontology funds, you can now use your device to securely access your funds with the O3 desktop wallet.

O3 Desktop: Setup Guide

With all existing wallets in the NEO/Ontology ecosystems, you are only allowed to have a single address for each Ledger device that you own. The O3 desktop wallet allows your to have multiple addresses on a single Ledger device.

The O3 desktop app allows you to access all of your NEO and Ontology funds in the same address, and is compatible with the latest Ontology Ledger app. You can now securely swap your NEP5 ONT tokens for MainNet ONT on your Ledger! You can also gain access to the MainNet ONT from the second NEO airdrop of MainNet ONT to existing NEO holders, as the O3 desktop app can now send and claim MainNet ONT and ONG.

VERY IMPORTANT: Please update your ONT & NEO apps on your Ledger device from the Ledger Live app to the latest versions ONT v1.2.0, and NEO v1.3.2. These updates is crucial to allowing you to manage your NEO and Ontology with the same Ledger device. If the update is not made, you may see a different address when using the Ontology Ledger app vs the NEO Ledger app, or be unable to properly sign transactions depending on where you first used your ledger.

This article is a part of our set of guides for using the O3 Desktop wallet v0.1.6. We encourage your to check it out when you get a chance.

O3 Desktop: Setup Guide

Adding your Ledger account from login screen

If you are already on the dashboard or settings screen, you can scroll down to the next section of this document.

Open the O3 app

On the login screen click “Add wallet”

Click “LEDGER”

Connect your Ledger device to your computer if it is not already connected.

Open either the NEO or ONT Ledger app on your ledger device. For just adding your wallet, it does not matter which app you open, as the addresses will be the same. Opening the correct app will be important later on when using it to authenticate a transaction, like a send or claim.

You will be presented with a list of addresses on your device, and you can continue to scroll down to add as many addresses from your Ledger as you like, one at a time.

The icon on the right hand side of each address, can be clicked to quickly pull up a summary of the funds available on this address.

If you are coming from any other NEO wallet, such as Neon, your address will be the first one on the list.

If you are coming from OWallet, and are using a Legacy Ontology only Ledger address, please check the “Ontology only addresses” checkbox at the bottom of the list. Please only use this option to recover funds from these addresses. It is advised to only use addresses listed without this box checked in the future.

Addresses on the list shown in green, with a check mark on the right hand side have already been added to the O3 app, and are ready to use.

Once selecting the wallet to add, you will be taken to the dashboard for this wallet. Ledger wallets will be denoted on the dashboard on the top left, next to the wallet name.

Adding your Ledger account from the dashboard or settings screen

If you are on the dashboards screen, open up the settings screen by clicking the gear icon in the menu bar of the left hand side.

In the settings screen, click “Add wallet”

Click “LEDGER”

Connect your Ledger device to your computer if it is not already connected.

Open either the NEO or ONT Ledger app on your ledger device. For just adding your wallet, it does not matter which app you open, as the addresses will be the same. Opening the correct app will be important later on when using it to authenticate a transaction, like a send or claim.

You will be presented with a list of addresses on your device, and you can continue to scroll down to add as many addresses from your Ledger as you like, one at a time.

The icon on the right hand side of each address, can be clicked to quickly pull up a summary of the funds available on this address.

If you are coming from any other NEO wallet, such as Neon, your address will be the first one on the list.

If you are coming from OWallet, and are using a Legacy Ontology only Ledger address, please check the “Ontology only addresses” checkbox at the bottom of the list. Please only use this option to recover funds from these addresses. It is advised to only use addresses listed without this box checked in the future.

Addresses on the list shown in green, with a check mark on the right hand side have already been added to the O3 app, and are ready to use.