Note: The following feature is only available with Jade Plus.
In order to send bitcoin using your Jade Plus fully air-gapped, a transaction will need to be crafted using a companion app and the information passed to your device using JadeLink for authorization (or "signing"). Once confirmed, Jade will save the signed transaction as a file to JadeLink to be read by your companion app so that it can be broadcast to the internet.
Note: This guide demonstrates air-gapped use with Sparrow. Please refer to your wallet app's specific instructions if not using this companion app.
Air-gapped JadeLink Transactions
1.
Open your JadeLink compatible companion app and create a new transaction by entering the recipient's address and the intended amount to send.
2.
Choose to save your unsigned transaction to JadeLink, then eject the drive and connect it to Jade Plus.
3.
Access an air-gapped Jade session and select Options, USB Storage, Sign. Then select the PSBT file you would like to sign.
4.
After confirming on your device that both the address and the amount match what you intended, Jade will sign the transaction and save the file to JadeLink. You can then connect JadeLink to your companion app to load the signed PSBT to broadcast the transaction and finish the sending process.