Summary: A step-by-step guide on using a Multisig wallet on the Nunchuk Desktop application with a 2-of-2 setup using OneKey and Blockstream Jade hardware wallets. This guide covers both methods of receiving coins and the process of securely switching between devices to sign and send Bitcoin transactions together.
- ⚠️ Warnings and Important Information Before Receiving or Sending Coins in a Multisig Wallet
- Steps for Receiving and Sending Coins in a Multisig Wallet (2-of-2) on Nunchuk Desktop
- How to Receive Coins in a Multisig Wallet
- How to Send Coins from a Multisig Wallet
- Summary
- Basic Troubleshooting
- 1. Unable to Switch to the Second Device (Blockstream Jade) and Sign, or the App Still Recognizes the Previous Device
- 2. USB Cable Connected, but Neither OneKey nor Blockstream Jade is Detected
- 3. Signed with the First Device, but the Broadcast Transaction Button Does Not Appear
- Frequently Asked Questions (FAQ)
- Q1: When Sending Coins, Do We Always Need to Connect the OneKey First, Then the Blockstream Jade, in That Order?
- Q2: Why Does Nunchuk Desktop Display the Connected Device as a Trezor When the OneKey is Connected to Sign?
- Q3: Is Signing Transactions with a Blockstream Jade via USB as Secure as Air-Gapped Mode?
- Q4: In the Receive Window, Should We Reuse the Same Address or Select One from Unused Addresses?
Hello, everyone.
After learning how to link keys and set up a multisig wallet on Nunchuk Desktop, the next important question many of you have when you start using it is: "When receiving coins into a multisig wallet or sending coins out using two keys from different brands connected together in Nunchuk, which buttons do we need to press and in what order?"
Today, I have summarized the actual steps for both receiving coins and sending coins out on Nunchuk Desktop in a 2-of-2 multisig setup, pairing popular Hardware Wallets from OneKey and Blockstream Jade, so you can follow along step-by-step in an easy-to-understand way.
⚠️ Warnings and Important Information Before Receiving or Sending Coins in a Multisig Wallet
⚠️ The most important precaution before actually using it
- Understand the difference between Testnet and Mainnet address formats: In the examples shown in this guide, I performed transactions on the test network (Testnet) to demonstrate the steps. The process for receiving and sending coins is exactly the same as using the live network (Mainnet), but the address format or coin unit symbols may differ slightly from normal. (For example, on Testnet, addresses start with tb1q... while on Mainnet, they start with bc1q... according to the Native SegWit standard.) Don't worry.
- Note on connecting the Blockstream Jade in this guide (USB vs. Air-Gapped): Normally, the Nunchuk Desktop app supports signing transactions with the Blockstream Jade both wirelessly (Air-Gapped QR) and via USB connection. However, while performing transactions on the test system as an example, I encountered certain limitations that prevented successful signing via Air-Gapped mode. Therefore, in this guide, I will demonstrate the USB connection method, which is more stable and easier to follow.
- Practice until you are proficient before moving large sums of money: Before actually moving your main assets into storage, I recommend trying to transfer small amounts or practicing receiving and sending until you are fully familiar with the process of switching between the two devices to sign transactions. (You can read more fundamentals in the article What Beginners Need to Know Before Using a Multisig Wallet and How Multisig Protects Hardware Wallets from Supply Chain Attacks)
- Strictly secure both keys and the wallet structure backup files: Since the 2-of-2 setup requires signatures from both devices (2 out of 2) to send coins every time, you must keep the Seed Phrase for both OneKey and Blockstream Jade, as well as the wallet structure backup files (BSMS / Output Descriptor), as securely as possible.
- Close the brand's main application before connecting the USB cable to sign transactions: Before connecting the USB cable to sign, please make sure you have closed the OneKey App and the Blockstream app (Blockstream Green) on your computer to prevent them from competing for the connection port with Nunchuk Desktop.
Steps for Receiving and Sending Coins in a Multisig Wallet (2-of-2) on Nunchuk Desktop
Part 1: Receiving Coins
Click the Multisig wallet you want to use -> choose from 2 methods to receive coins:
├─ Method 1 (Quick Receive): View the QR Code and copy the address from the right panel to use immediately
└─ Method 2 (Receive Button): Click the Receive button -> select and copy the address from the Unused Address tab
↓
Part 2: Creating a Transaction to Send Coins
Click the Send button -> enter the recipient's address, the amount of coins, and a note -> click Continue
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Review the details on the Confirm transaction page (Address, Fee, Total amount) -> click Confirm and create transaction
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Part 3: Signing with Both Devices via USB (Member Keys Signing)
├─ Key 1 (OneKey): Connect the OneKey cable and unlock the PIN -> click Sign in the app -> review and confirm on the OneKey screen -> a checkmark appears (1/2 complete)
└─ Key 2 (Blockstream Jade): Disconnect the OneKey cable and connect the Jade cable instead, then unlock the device -> click Rescan in the app -> click Sign -> review and confirm on the Jade screen -> a checkmark appears (2/2 complete)
↓
Part 4: Broadcasting the Transaction to the Blockchain
Once checkmarks appear for both devices -> click the Broadcast transaction button to complete the process
How to Receive Coins into a Multisig Wallet (Receive)
To receive Bitcoin into a Multisig wallet using the Nunchuk Desktop application, you do not need to connect both hardware wallets every time. You can simply open the application to view the receiving address by following these steps.
- Select the wallet you want to use: Open the Nunchuk Desktop application and select the Multisig wallet you want to receive coins into from the Wallets menu on the left.
- Choose a method for receiving coins (two methods are available): In the Nunchuk wallet window, you can view the receiving address in two ways, depending on your preference:
- 2.1 Use the Quick Receive bar (the fast method): The Quick Receive box will appear on the right side of the screen, ready to use. It displays both a QR code and an address that you can copy and use to receive a transfer.
- 2.2 Click the Receive button: Click the Receive button on the left side of the wallet.
The system will open a separate Receive window, which is divided into unused addresses (Unused Address) and addresses that have already been used to receive coins (Used Address). You can use the address or QR code from the Unused Address section. (You can also connect the device and click Verify address on device to check its validity on the device screen before use, or click Generate new address to create additional receiving addresses.)
How to Send Coins from a Multisig Wallet (Send)
When you want to send Bitcoin from a 2-of-2 Multisig wallet, the process is like opening a vault that requires both the OneKey and Blockstream Jade keys to be used for signing approval. The steps are as follows:
- Select the wallet you want to use and click the start transfer button: Select the Multisig wallet you want to use from the left menu, then click the Send button.
- Enter the transfer details in the New transaction window: After clicking the Send button, the New transaction window will appear. Check and enter the following important details:
- Balance: Displays the total remaining BTC balance in this wallet.
- Enter recipient’s address: The field for entering the recipient’s address (Address).
- Amount: The field for specifying the amount of BTC you want to send.
- Transaction note: The field for entering a transaction memo (optional).
- Once you have entered all the information, click the Continue button.
- Review the summary in the Confirm transaction window: This window will display a summary of the entire transaction for you to review again, including the destination address, the network fee (Fee), and the total amount. Carefully check all the details. Once everything is correct, click the Confirm and create transaction button.
- Enter the signature window (Transaction details): The system will take you to the Transaction details window, which not only displays the transaction information but also lists the keys in the Member keys section for you to sign (Sign) up to the number of keys specified in your settings (in this example, two keys).
💡 Note: Although the Nunchuk Desktop application supports air-gapped signing for the Blockstream Jade device, some issues were encountered during the demonstration that prevented it from completing successfully in air-gapped mode. Therefore, in this step, we will use a USB connection to sign the transaction with the Blockstream Jade as an example.
- Connect the cable and sign the transaction with the first device (OneKey): Connect the OneKey device to your computer using a USB cable. Enter the PIN to unlock the device screen. Then click the Sign button for the OneKey key on the Nunchuk application screen and wait a moment for the system to send the data to the OneKey device.
- Check and confirm on the OneKey screen: Look at the OneKey device screen to check the destination address and the amount to be transferred. If the information matches, press the transaction confirmation button on the OneKey device until the process is complete. Once confirmed, the status on the Nunchuk application screen will change to a checkmark (1 out of 2 signatures completed).
- Switch the cable to the second device (Blockstream Jade), click Rescan, and sign: Disconnect the USB cable from the OneKey device and connect it to the Blockstream Jade device instead. Unlock the Jade device so it is ready to use. Then, on the Nunchuk application screen, click the Rescan button to allow the application to scan for the new device. Once the Rescan is complete, click the Sign button for the Jade key and wait to confirm the transaction on the Blockstream Jade device.
- Check and confirm on the Blockstream Jade screen: Check the destination address and the amount on the Blockstream Jade device screen again. If they match, you can confirm the transaction on the device. Once confirmed, the Nunchuk application will display a checkmark for both keys.
- Broadcast the transaction to the blockchain: Once both devices have been signed and display a checkmark, click the Broadcast transaction button below to send the transaction to the Bitcoin network. The process is now complete.
Summary
As you can see, receiving and sending coins from a 2-of-2 Multisig wallet using the Nunchuk Desktop application is not as complicated as many people worry. Simply understand the timing of switching the USB cable and clicking the Rescan button so the application can recognize the second device, and you can carefully verify the transaction on the separate screens of both OneKey and Blockstream Jade. This completely eliminates the risk of relying on a single device.
And for those who want to set up a genuine hardware wallet kit for a Multi-Vendor Multisig system, purchasing through an authorized reseller in Thailand such as Bitcast will ensure that every device comes directly from the manufacturer, includes a Thai official warranty, and is supported by a team that provides guidance throughout its use.
If you follow this guide and run into any issues at any step, feel free to comment below or contact the Bitcast team via Inbox anytime.
Common Troubleshooting
1. Cannot switch the cable to the second device (Blockstream Jade) and click Sign, or the application still remembers the original device
- Cause and solution: When you disconnect the cable from the first hardware wallet and connect it to the second device on a USB port, the application may not automatically update the connection status. First, unlock the PIN on the Blockstream Jade device screen, then click the Rescan button on the Nunchuk Desktop application screen once. The system will detect the new device and allow you to click the Sign button as usual.
2. The USB cable is connected, but the application cannot scan for either OneKey or Blockstream Jade
- Cause and solution: Check that the OneKey App or Blockstream app (Blockstream Green) is not running in the background, as the USB system only allows one application to communicate with the device at a time. If you close those applications and it still does not appear, try disconnecting and reconnecting the USB cable, or use a USB cable that supports data transfer (Data Cable).
3. The transaction has been signed on the first device, but the Broadcast transaction button does not appear
- Cause and Solution: Since this wallet is set with a 2-of-2 Multisig condition, the system will not allow the transaction to be sent until it receives both signatures. You need to switch the cable to the second device, press Rescan, and press Sign until both checkmarks appear. Only then will the Broadcast transaction button appear for you to click.
Frequently Asked Questions (FAQ)
Not at all. In the Multisig system on the Bitcoin network, the order of signing does not affect the success of the transaction. You can connect the Blockstream Jade cable and press Sign first, then switch the cable to the OneKey as the second device. As long as you sign until both checkmarks appear according to the 2-of-2 condition, you can also press Broadcast transaction.
Don't worry. This is 100% normal. This is because the OneKey firmware has a Trezor Compatibility Mode that uses the same communication protocol as Trezor to work stably with international-standard programs such as Nunchuk and Sparrow Wallet. Just observe the key name we set initially, such as OneKey, and press Rescan every time after switching the cable. You can then safely press confirm the transaction on the OneKey screen.
It is as safe as the standard Hardware Wallet. Because our private key will still be stored only inside the Blockstream Jade device and is never sent to the computer. Connecting the USB cable is only to send transaction data into the device for processing and waiting for us to press confirm on the Jade screen itself.
We recommend choosing the receiving address from the Unused Address tab (a new address that has never been used to receive coins before) as the main option. Because modern Bitcoin wallets can create unlimited new Addresses under the same set of keys. Changing to a new Address for each transfer helps maintain privacy so that outsiders cannot easily track our total balance history.
แชร์:
Step-by-Step Guide to Using Multisig in Nunchuk Wallet (Desktop): How to Receive and Send Coins with Blockstream Jade and Trezor (2 of 2)
Step-by-Step Multisig Setup Guide in Nunchuk Wallet (Desktop) (2-of-3 Example with Trezor, OneKey, and Jade)