> For the complete documentation index, see [llms.txt](https://support.keyst.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.keyst.one/3rd-party-wallets/bitcoin-wallets/bluewallet.md).

# Enhance the security of BlueWallet

With firmware versions V1.1.1 (BTC-Only) or newer, you can set BlueWallet V6.2.0 or newer as a watch-only wallet that functions as the companion app for Keystone Essential or Pro.

## **I. Preparation**

1\. [Firmware](https://keyst.one/firmware?locale=en) version V1.1.1 (BTC-Only) or newer running on Keystone Essential or Pro.

    (Please read[ How to upgrade firmware](https://support.keyst.one/getting-started/firmware-upgrading) for more details.)

2\. MicroSD card (≤512GB; Default FAT32 format).

{% content-ref url="/pages/-MclpVfjNf9WvY0094y4" %}
[How to Format a MicroSD Card to FAT32?](/getting-started/firmware-upgrading/how-to-format-a-microsd-card-to-fat32.md)
{% endcontent-ref %}

3\. Smartphone with the BlueWallet V6.2.0 or later downloaded.

## II. Creating a BlueWallet Watch-Only Wallet (BTC-Only)

1\. On the Keystone hardware Wallet, touch \[Menu] > \[Settings] > \[Watch-Only Wallet]. You can also set up a watch-only wallet during initialization. 

<figure><img src="/files/-Mec3BBtFnD6E8ES8Gaq" alt="Keystone-BlueWallet-1"><figcaption></figcaption></figure>

2\. Select \[BlueWallet], then tap \[Confirm] and enter the wallet.

<figure><img src="/files/-Mec3EVZ_Nd_hkmzmpj3" alt="Keystone-BlueWallet-2"><figcaption></figcaption></figure>

3\. Tap the \[•••] icon, then select \[Export Wallet]. Show the QR code to display the information required for pairing with BlueWallet (includes the wallet XPUB, Keystone's fingerprint, and derivation path).&#x20;

<figure><img src="/files/-Mec3HQBsD48AeKw1xtQ" alt="Keystone-BlueWallet-3"><figcaption></figcaption></figure>

4\. On the BlueWallet app, go to the wallets interface and touch \[Add now], then tap \[Import wallet].

<figure><img src="/files/-Mec3vAHNL3YSsKHckqp" alt="Keystone-BlueWallet-5"><figcaption></figcaption></figure>

5\. Tap \[Scan or import a file], then use your smartphone's camera to scan the QR code displayed on Keystone.

<figure><img src="/files/-Mec403zRJrStlVDczKY" alt="Keystone-BlueWallet-6"><figcaption></figcaption></figure>

6\. BlueWallet can now be used as the watch-only wallet for Keystone.&#x20;

<figure><img src="/files/-Mec44LgFfDJ0mPiYSkt" alt="Keystone-BlueWallet-7"><figcaption></figcaption></figure>

## III. Sending and Receiving Bitcoin with BlueWallet

### **A. Receiving Bitcoin**

You can use receiving addresses displayed by either the Keystone hardware Wallet or BlueWallet to receive bitcoin.&#x20;

1\. Displaying Address on Keystone

&#x20;1\) Enter your BlueWallet interface on Keystone, then select a receiving address to display it as a QR code.

<figure><img src="/files/-MecgToPIq1wcw953mdW" alt="Keystone-BlueWallet-8"><figcaption></figcaption></figure>

2\. Displaying Addresses on BlueWallet

1\) Go to the corresponding wallet, and tap \[Receive] to display the receiving address.

<figure><img src="/files/-MecgatIUhvME6PakAXC" alt="Keystone-BlueWallet-9"><figcaption></figcaption></figure>

### **B. Sending Bitcoin**

#### 1. Using BlueWallet to Create Transactions

1\) Open the BlueWallet app on your smartphone, and find the wallet that has been paired with Keystone.

2\) Tap \[Send] to enter the sending interface.

<figure><img src="/files/-MecvL10L_0ZybEP3Dvs" alt="Keystone-BlueWallet-10"><figcaption></figcaption></figure>

3\) Configure the receiving address, amount, transaction fees, and notes.&#x20;

4\) Tap \[Next] to display the unsigned transaction information in a dynamic QR code format.

<figure><img src="/files/-MecuULeGFias47o4LKv" alt="Keystone-BlueWallet-11"><figcaption></figcaption></figure>

#### 2. Using Keystone Hardware Wallet to Sign Transactions

1\) Tap the \[scan] icon on Keystone and use the hardware wallet device camera to scan the QR code displayed on BlueWallet.

<figure><img src="/files/-MecwOO0qOFvI_WD1X37" alt="Keystone-BlueWallet-12"><figcaption></figcaption></figure>

2\) Tap \[Sign], and input your device password to obtain the signed transaction information (awaiting broadcast).

<figure><img src="/files/-Mecwe5JEiQDCfNuxoPL" alt="Keystone-BlueWallet-13"><figcaption></figcaption></figure>

#### 3. Using BlueWallet to Broadcast Transactions

1\) Tap \[Scan Signed Transaction], and use your smartphone camera to scan the QR code displayed on Keystone to transmit the signed transaction data.

2\) Once you have entered the broadcasting interface on BlueWallet, tap \[Send Now] to broadcast the transaction.

<figure><img src="/files/-MecwliTobm-miRvJG4f" alt="Keystone-BlueWallet-14"><figcaption></figcaption></figure>

Instructions recommended:

{% content-ref url="/pages/-Mf6cBoOINjuvhnOeRyQ" %}
[BlueWallet 2/3 PSBT Multi-sig: BlueWallet + Keystone + ColdCard](/3rd-party-wallets/bitcoin-wallets/bluewallet/bluewallet-2-3-psbt-multi-sig-bulewallet-keystone-and-coldcard.md)
{% endcontent-ref %}

{% content-ref url="/pages/-MewiPrgoLeQoXde14j1" %}
[BlueWallet 2/3 PSBT Multi-sig: Keystone + ColdCard + SeedPicker](/3rd-party-wallets/bitcoin-wallets/bluewallet/bluewallet-2-3-psbt-multi-sig.md)
{% endcontent-ref %}