> For the complete documentation index, see [llms.txt](https://docs.vultisig.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vultisig.com/app-guide/creating-a-vault/fast-vault.md).

# Fast Vault: one device + VultiServer (2-of-2)

Fast Vault is 2-of-2: your device plus VultiServer, which co-signs but can never sign alone. Setup in about a minute. Secure Vault uses only your own devices.

## Overview

Your device holds one share. VultiServer holds the other and signs with you. It can never sign alone. Same math as a Secure Vault, one-device signing.

How the server share works: [VultiServer](/infrastructure/what-is-vultisigner.md).

<figure><img src="https://644481292-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfSRUQVZENEfvoqS6R0GO%2Fuploads%2Fgit-blob-67cba6c361d78179ac47ce4903a07832232aa239%2Fimage%20(24).png?alt=media" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Want every share on devices you hold? Create a [Secure Vault](/app-guide/creating-a-vault/secure-vault.md) and move the funds. Fast Vault does not convert in place.
{% endhint %}

***

## Creation Steps

<figure><img src="https://644481292-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfSRUQVZENEfvoqS6R0GO%2Fuploads%2Fgit-blob-adc727b28672a0e2e97f8b2e27aa8f27d19d024d%2Fimage%20(26).png?alt=media" alt="" width="375"><figcaption></figcaption></figure>

1. Download Vultisig and open the app
2. Select **Fast Vault**

<figure><img src="https://644481292-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FfSRUQVZENEfvoqS6R0GO%2Fuploads%2Fgit-blob-36f2b62ea660d34b29a324e39102c7de721716cb%2Fimage%20(28).png?alt=media" alt="" width="375"><figcaption></figcaption></figure>

3. Choose a vault name
4. Enter your email — the server share is sent there
5. Set a password for the server share

{% hint style="warning" %}
Remember this password. It encrypts the server backup. Vultisig cannot recover it for you.
{% endhint %}

6. Optionally set a hint for that password
7. Start keygen and wait until it finishes
8. Enter the 4-digit code from the email
9. Export your device share

{% hint style="danger" %}
Do not keep the device backup on the same phone. Use a different cloud account or offline media.
{% endhint %}

***

## Backups

Fast Vaults have **two backup shares** despite using one user device for signing:

* **Device share**: Your device's vault share
* **Server share**: Sent to your email during creation

{% hint style="info" %}
Both shares must be backed up in separate locations. See [Backup & Recovery](/getting-started/backup-recovery.md) for storage recommendations.
{% endhint %}

***

## Troubleshooting

**Unable to connect to the server** The server may be temporarily unavailable. Try again later.

**Unstable Network** Keygen may fail with unstable connections. Quit the app, change networks, and restart.

**Unable to sign with Fast Vault**

1. *Server not available*: Try again later
2. *QR code appears instead of password prompt*: You imported the server share instead of the device share. Import the correct device share.


---

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