> For the complete documentation index, see [llms.txt](https://doc.lockerprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.lockerprotocol.com/start-here/set-up-in-3-steps.md).

# Set up in 3 steps

Install the Vault, create an account, connect the browser extension.

This is the short version. Each step links to a page with every detail, if you need it.

## What you need

* An old phone or tablet for the Vault (see [What you need](/start-here/what-you-need.md)).
* Your computer, with the browser extension installed (see [Install the extension](/browser-extension/install.md)).
* Paper and a pen.

{% stepper %}
{% step %}

### Install the Vault on the offline device

On your computer, open the extension and choose **I don't have a vault yet** → **Get the free Vault app**. A QR code appears. Scan it with the phone's camera: it opens `vault.lockerprotocol.com`. Add it to the home screen, wait for **Offline copy ready**, then turn on **airplane mode**. Leave it on forever.

<figure><img src="https://3674012151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FT2jyfPJ4rcVavAvTU9nL%2Fuploads%2Fgit-blob-998cb659b7520885f104077119f5632389f1b05a%2F06-first-open.png?alt=media" alt="vault install qr"><figcaption><p>The extension shows the link to the Vault as a QR code.</p></figcaption></figure>

Details: [Install the Vault](/vault/install.md)
{% endstep %}

{% step %}

### Create an account on the Vault

Open the Vault. Accept the terms, create your **master password**, then tap **+** → **Create an account**. Move your finger in the box, write the 12 or 24 words on paper, and put them back in order to prove you have them.

<figure><img src="https://3674012151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FT2jyfPJ4rcVavAvTU9nL%2Fuploads%2Fgit-blob-05eb19916be87b5777059a231938e8c5317aa50c%2F02-vault-create-done.png?alt=media" alt="vault create done"><figcaption><p>Your first account, created on the Vault. Its keys never leave this device.</p></figcaption></figure>

Details: [Create a new account](/vault/add-an-account/create-a-new-account.md)
{% endstep %}

{% step %}

### Show the sync QR on the Vault

On the Vault's Accounts screen tap the violet **Extension Sync** card. The page first shows *Where is the extension in Chrome or Brave?* (install, pin, add the account); below it, pick the account and tap **Show the sync QR**. The QR appears with, under it, **What the extension will receive**: your *public* addresses only.

<figure><img src="https://3674012151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FT2jyfPJ4rcVavAvTU9nL%2Fuploads%2Fgit-blob-e19eefd5a62191ba76fe2012a31ece60eb531113%2F03-vault-sync-qr.png?alt=media" alt="vault sync qr"><figcaption><p>The sync QR: addresses only, no keys.</p></figcaption></figure>
{% endstep %}

{% step %}

### Scan it with the extension

On your computer, the extension's first-run page asks you to **Scan your vault**. Click **Start camera** and hold the Vault up to the webcam.

<figure><img src="https://3674012151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FT2jyfPJ4rcVavAvTU9nL%2Fuploads%2Fgit-blob-add0db8ad3576467f83e65fe64677f3478536383%2F04-extension-onboarding-scan.png?alt=media" alt="extension onboarding scan"><figcaption><p>The extension reads the Vault's screen.</p></figcaption></figure>
{% endstep %}

{% step %}

### You are done

The extension now shows your account and its balance. It can *watch* your account and *ask* the Vault to sign, but it holds no key.

<figure><img src="https://3674012151-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FT2jyfPJ4rcVavAvTU9nL%2Fuploads%2Fgit-blob-605da1d08a2dd78f929fda1d46d293cd196f4102%2F01-home.png?alt=media" alt="extension home with account"><figcaption><p>Your account in the browser, watch-only.</p></figcaption></figure>
{% endstep %}

{% step %}

### Keep the Vault offline

Check that airplane mode is still on. The Vault shows a red banner whenever it detects the internet. If you see it, disconnect.
{% endstep %}
{% endstepper %}

{% hint style="info" %}
**What you see when it worked:** the extension's home screen shows your account name, its address and a balance (zero is fine). The Vault's home screen lists the same account.
{% endhint %}

{% hint style="warning" %}
**If something goes wrong**

* *The extension cannot start the camera:* see [Camera permission](/browser-extension/camera-permission.md).
* *The QR will not scan:* bring the Vault closer, hold it still, and raise the screen brightness. Animated codes need a second or two.
* *The Vault shows a red "INTERNET DETECTED" banner:* turn airplane mode on and check Wi-Fi is off.
  {% endhint %}

## Next

* [Your first signature](/start-here/your-first-signature.md), a practice run with nothing at stake.
* [Safety rules](/start-here/safety-rules.md)


---

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