Create and Join a BTC Multisignature Address and Transaction

1. Go to the Assets page and tap BTC to enter the BTC wallet.

2. Tap the “wallet” icon at the top right of the BTC wallet page.

3. Tap the “+” ICON at the top right of the address page.

4. Select the “Multi Sign” Tab and enter the multi-sign address information.

5. Confirm your information and tap the “Create Multi-Sign Address” button. Get the invitation QR code.

6. Tap the “Done” button. You can see that the status of the multi-sign address is “Pending”.

(Once the invitees have joined successfully, the status will change to “Sync Vault”.)

1. Go to the Assets page and tap the “Scan” icon at the top right corner of the Assets page.

2. Scan the invitation QR code you receive from the creator.

3. Input your Name and tap the “Join Multi-sign” button.

4. You can see that the status of the multi-sign address is “Sync Vault”.

Note: If you are not the last one to join this address, the status will still be “Pending”.

1. Enter the BTC multi-sign address page. Select “Sync Vault” next to the multi-sign address.

2. Get the sync up QR code.

3. Use the Cobo Vault to scan the sync up QR code displayed on the Cobo Vault App.

4. You will see a success message at the top of the screen. Enter the BTC wallet page on the Cobo Vault to check.

1. Go to the Assets page and tap BTC to enter the BTC wallet.

2. Tap the “Send” button and select a multi-sign address from the address list.

3. On the send page, enter the transaction information.(Address, number, memo, fee) Tap the “Send” button. Get the required signature QR code.

4. Use the Cobo Vault to scan the QR code displayed on the Cobo Vault App.

5. If you didn’t sync up the multi-sign address with the Cobo Vault, you will see the following error message. You need to sync up the multi-sign address first.

6. Enter the sign page. Tap the “Sign” button, enter the password and tap the “Confirm” button.

7. Get the signature QR code from the Cobo Vault device.

8. Tap the “Next” button on the Cobo Vault App and scan the signature QR code displayed on the Cobo Vault device.

9. Create the multi-sign transaction successfully and wait for co-signers to join.

1. Go to the Assets page and tap BTC to enter the BTC wallet.

2. Select the “Multi-sign” tab to check the “To be signed” multi-sign transaction.

3. Select the “To be signed” multi-sign transaction. Tap the “Sign” button to get the required signature QR code.

4. Use the Cobo Vault to scan the QR code displayed on the Cobo Vault App.

5. If you did not sync the multi-sign address with the Cobo Vault, this error message will pop up. You need to sync the multi-sign address first.

6. Enter the sign page. Tap the “Sign” button, enter the password and tap the “Confirm” button.

7. Get the signature QR code from the Cobo Vault device.

8. Tap the “Next” button on the Cobo Vault App and scan the signature QR code displayed on the Cobo Vault device.

9. If you are the last one to join this transaction, the status will be refreshed to “Pending”. (If you are not the last one to join, the status will still be “To be signed”. Please wait for other co-signers to join.)

10. Select the “Pending” multi-sign transaction. Tap the transaction ID and check the transaction status on the BTC blockchain.