# 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="../../getting-started/firmware-upgrading/how-to-format-a-microsd-card-to-fat32" %}
[how-to-format-a-microsd-card-to-fat32](https://support.keyst.one/getting-started/firmware-upgrading/how-to-format-a-microsd-card-to-fat32)
{% 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MebvzLysfEOeyMT9RQN%2F-Mec3BBtFnD6E8ES8Gaq%2F1-1.jpg?alt=media&#x26;token=99653b11-93b1-4e5a-8756-dd4750265adb" alt="Keystone-BlueWallet-1"><figcaption></figcaption></figure>

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

<figure><img src="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MebvzLysfEOeyMT9RQN%2F-Mec3EVZ_Nd_hkmzmpj3%2F1-2.jpg?alt=media&#x26;token=8682b8bd-c33a-4f46-86fc-12c2d1a276c7" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MebvzLysfEOeyMT9RQN%2F-Mec3HQBsD48AeKw1xtQ%2F2.jpg?alt=media&#x26;token=d2013fc4-eb3e-43bc-8273-da03644ac173" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MebvzLysfEOeyMT9RQN%2F-Mec3vAHNL3YSsKHckqp%2F3.jpg?alt=media&#x26;token=f3750309-7677-4553-885b-b214a6c521c8" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MebvzLysfEOeyMT9RQN%2F-Mec403zRJrStlVDczKY%2F4.jpg?alt=media&#x26;token=3e0ea3c0-68d7-426f-b0c0-7a8daade9498" alt="Keystone-BlueWallet-6"><figcaption></figcaption></figure>

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

<figure><img src="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MebvzLysfEOeyMT9RQN%2F-Mec44LgFfDJ0mPiYSkt%2F5.jpg?alt=media&#x26;token=5c8ad0a6-d667-4e30-b094-7947bdbe6fbe" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-MecgToPIq1wcw953mdW%2F1.jpg?alt=media&#x26;token=451a54aa-c817-4d39-a022-f94236d0496b" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-MecgatIUhvME6PakAXC%2F2.jpg?alt=media&#x26;token=2d218e84-a664-468f-9b37-73c9a72096f4" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-MecvL10L_0ZybEP3Dvs%2F3.jpg?alt=media&#x26;token=bae69479-77e1-41cb-8214-48b97ab4023e" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-MecuULeGFias47o4LKv%2F4.jpg?alt=media&#x26;token=127e56e6-9dfc-4fb8-93d6-d834b52199dc" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-MecwOO0qOFvI_WD1X37%2F5.jpg?alt=media&#x26;token=ff98bd8a-737d-4bee-baaa-089eb8a1016e" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-Mecwe5JEiQDCfNuxoPL%2F6.jpg?alt=media&#x26;token=15a73cbd-2f86-4f2d-9aea-f3f8b69e96df" 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="https://2420738387-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MVozfoQsxc6YFPQfVTB%2F-MecH13pCDyApjv2RX9M%2F-MecwliTobm-miRvJG4f%2F7.jpg?alt=media&#x26;token=1122ca73-6be4-4f54-bd74-8ecfe590643a" alt="Keystone-BlueWallet-14"><figcaption></figcaption></figure>

Instructions recommended:

{% content-ref url="bluewallet/bluewallet-2-3-psbt-multi-sig-bulewallet-keystone-and-coldcard" %}
[bluewallet-2-3-psbt-multi-sig-bulewallet-keystone-and-coldcard](https://support.keyst.one/3rd-party-wallets/bitcoin-wallets/bluewallet/bluewallet-2-3-psbt-multi-sig-bulewallet-keystone-and-coldcard)
{% endcontent-ref %}

{% content-ref url="bluewallet/bluewallet-2-3-psbt-multi-sig" %}
[bluewallet-2-3-psbt-multi-sig](https://support.keyst.one/3rd-party-wallets/bitcoin-wallets/bluewallet/bluewallet-2-3-psbt-multi-sig)
{% endcontent-ref %}