# Wasabi Wallet Keystone firmware versions V1.1.1 (BTC-Only) or newer allows you to use Wasabi Wallet V1.1.12.8 or newer as a watch-only wallet. ## **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\. Computer with [Wasabi Wallet](https://wasabiwallet.io/#download) V1.1.12.8 or newer downloaded. 3\. MicroSD card (FAT32 format with capacity **NOT** exceeding 512GB). {% 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 %} ## II. Creating a Wasabi Wallet Watch-Only Wallet (BTC-Only) 1\. Insert your microSD card into Keystone. 2\. In the Keystone hardware wallet, go to\[Menu] > \[Settings] > \[Watch-Only Wallet] > \[Wasabi Wallet] > \[Confirm].
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3\. Touch \[•••] > \[Export Wallet] > \[Export]. Your wallet's master public key file will be exported to the microSD card.
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4\. Take the microSD card out of Keystone and insert it into your computer. 5\. Open Wasabi Wallet on your computer, select \[Hardware Wallet] > \[Import Coldcard].
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6\. In the root directory of the microSD card, find the Xpub file and click \[Open].
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7\. Click \[Load Wallet].
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8\. Wasabi can now be used as the watch-only wallet for Keystone.
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## II. Sending and Receiving Assets with Wasabi Wallet ### **A. Receiving Bitcoin** You can use receiving addresses displayed by either the Keystone hardware wallet or Wasabi to receive bitcoin. 1\. Displaying Address on Keystone 1\) On the Keystone hardware wallet, go to \[Settings] > \[Watch-Only Wallet] > \[Wasabi Wallet]. 2\) Once you enter your Wasabi Wallet interface on Keystone, touch a receiving address to display it as a QR code.
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2\. Displaying Addresses on Wasabi Wallet 1\) Click \[Receive] to display receiving addresses.
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### **B. Sending Bitcoin** 1\. Using Wasabi Wallet to Send Bitcoin 1\) Insert your microSD card into your computer while running Wasabi Wallet. 2\) Click on \[Build Transaction] on the right side navigation bar. 3\) Select the UTXOs you want to use, then configure the receiving address, transaction amount, and transaction fees. 4\) Click \[Build Transaction] in the bottom left of the interface, and check the signed transaction data.
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5\) Click \[Export Transaction] in the lower right corner to export the PSBT file to your microSD card.
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2\. Using Keystone Hardware Wallet to Sign Transactions 1\) Take out the microSD card from computer and insert it into Keystone. 2\) Touch "MicroSD card" icon, and open the transaction file.
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3\) Touch \[Sign] and enter your password to sign the transaction.
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4\) Touch \[Export] and the signed PSBT transaction file (awaiting broadcast) will be exported to your MicroSD card's root directory.
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3\. Using Wasabi to Broadcast Transactions 1\) Take the microSD card out of Keystone and insert it into your computer. 2\) In Wasabi, click \[Open Transaction Broadcaster] > \[Import Transaction]. Find out the signed transaction file under the microSD card and open it. Click \[Broadcast Transaction] to broadcast the transaction.
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