Blockstream Jade Backup: How to Do It Right (UK Guide)

By Simon Bumford, Founder · 2026-07-29 · 10 min read

Blockstream Jade backup explained for UK holders: write down the recovery phrase safely, understand the blind oracle, and restore if the device is lost.

How do I back up a Blockstream Jade?

Backing up a Blockstream Jade means one thing: writing down the recovery phrase the device shows you during setup, in pen, on paper, and storing it somewhere safe and offline. That phrase, usually 12 or 24 words, is the real wallet. The Jade itself is just a secure keypad for using it. If the device is lost, broken or stolen, you can buy a new one and restore the same wallet from those words in a few minutes. The flip side is just as important. If you lose the words and then lose the device, nobody can help. Blockstream never sees your recovery phrase, there is no account behind it, and there is no reset email. That is the deal with self-custody, and it is the same deal on every device, as we cover in our general guide to backing up a hardware wallet. The rest of this guide covers the Jade family and what each model costs, the unusual way Jade protects your words without a secure element chip, SeedQR backups, and exactly how to restore if the worst happens.

Keys, not coins: what your Jade backup actually protects

It helps to understand what the recovery phrase actually is, because it explains every safety rule that follows. Your bitcoin does not sit inside the Jade. Coins only ever exist on the bitcoin network, as entries on a shared public ledger. What your wallet holds is the private key that can move them, and the recovery phrase is a human readable copy of that key. That has two consequences. First, your backup is portable. The words a Jade generates follow the same industry standard as most other wallets, so if Blockstream disappeared tomorrow you could restore those words into another hardware wallet and your bitcoin would be exactly where you left it. The device is convenient; the words are essential. Second, the words are the coins for all practical purposes. Anyone who reads them can rebuild your wallet on their own device and spend everything, from anywhere in the world, without ever touching your Jade. That is why every rule in this guide comes back to the same idea: guard the words harder than you guard the device.

The Jade family: Classic, Plus and Core

Blockstream currently sells three models, and the backup works the same way on all of them. The original Jade, launched in January 2021, is about $79 on the official store. Jade Plus arrived in January 2025 with a much larger screen and metal body options, at roughly $149 to $169 depending on the finish. Jade Core, released in April 2026 at about $99, is the newcomer: a simpler device with USB-C and Bluetooth only, no camera, no battery and no SD card slot, aimed at beginners. The official Blockstream store has a GBP currency option and ships to the UK. The camera matters more than it sounds. The Classic and the Plus can sign transactions entirely by QR codes, so they never need to plug into a computer. The Core cannot, because it has no camera, so it always talks to your phone or computer over a cable or Bluetooth. Whichever model you own, the words are created and backed up identically. A Jade Plus backup is the same as a Classic or Core backup, and one phrase restores to any of them. Buy only from the official store or an official reseller: tampered second-hand hardware wallets are a real, documented risk.

Writing down your Jade recovery phrase, step by step

When you set up a new Jade and choose to create a new wallet, the device shows your recovery phrase on its own screen, a few words at a time. Do this part slowly, alone, and away from windows and webcams. Write the words in pen, on paper or card, numbered in order, and check each one back against the screen before moving on. Spelling matters: the words come from a fixed list, and a close but wrong word can cost you real time during a restore. Now the rules that never bend. Never type your recovery phrase into a computer or phone. Never photograph it. Never store it in a cloud drive, an email draft, a notes app or a password manager. Every one of those turns an offline secret into something a hacker on the other side of the world can steal. A seed phrase should only ever exist on physical objects in places you control. Most people keep two paper copies in two separate locations, for example home and a trusted relative's house, so one fire or flood cannot take both. Once the words are written and checked, the Jade will ask you to set a PIN, and setup is done.

How does Jade protect your recovery phrase? The blind oracle in plain English

Most hardware wallets guard your keys with a secure element, a dedicated tamper resistant chip. Jade deliberately does not have one. Instead, the entire design, hardware and firmware, is fully open source and published on GitHub, and the chip's job is done by something Blockstream calls a blind oracle, or virtual secure element. Here is the plain English version. Your recovery phrase is stored on the Jade in encrypted form, and the device alone cannot decrypt it. Part of what is needed to unlock it lives with a separate server. When you enter your PIN, the Jade and the server talk, and only if the PIN is right does the device get what it needs to open your wallet. The server is blind because it never learns your PIN or your keys, and it stops cooperating after repeated wrong guesses, so a thief cannot brute force a stolen Jade. The design has been tested in anger. In 2021, Ledger's security researchers showed a physical attacker could decrypt the firmware on the original Jade's chip family. Blockstream shipped mitigations, and wallet secrets stayed protected by the blind oracle. The trade-off is that the standard setup depends on Blockstream's PIN server being reachable and honest. You can run your own oracle instead, but that is a technical job most readers will happily skip. Crucially, your words on paper need no oracle at all.

SeedQR and air-gapped QR mode

On the Classic and the Plus, the built in camera unlocks two useful tricks. The first is air-gapped signing: the wallet app on your computer or phone shows a QR code, the Jade scans it, signs the transaction internally, and shows a QR code back. Nothing ever plugs in, which removes a whole category of cable and USB based attacks. The second is SeedQR, a way of recording your recovery phrase as a QR code that you draw or stamp yourself on paper or metal, with no printer or computer involved. The Jade Plus supports stateless SeedQR workflows: scan your SeedQR at the start of a session and the device loads your wallet temporarily, keeping nothing once it powers off. Some holders like this because the Jade then stores no secrets at rest at all. Be clear about what a SeedQR is, though. It is your recovery phrase in another costume, not an extra security layer. Anyone who scans it owns your bitcoin, so it needs exactly the same protection as the written words, and it must never be scanned or photographed by an ordinary phone. The Jade Core sits this section out entirely: with no camera, it cannot do QR signing or SeedQR, which is part of why it costs less.

How to restore a Blockstream Jade if it breaks or is lost

If your Jade breaks, is lost or is stolen, your bitcoin is not lost with it. Buy a replacement, choose the restore option instead of creating a new wallet, and enter your recovery phrase word by word on the device itself. Set a fresh PIN and the wallet reappears exactly as it was. A thief who has your old device but not your words runs into the blind oracle's limit on PIN guesses, which is precisely what it exists for. You are not locked into Blockstream either. Jade follows the common industry standard and works alongside well known bitcoin wallets such as Sparrow, Electrum, Specter and Nunchuk, so the same words can be brought back on another vendor's hardware too. The habits are identical whatever you restore to, as our guide to backing up a Coldcard shows. After any restore, be deliberate. Check a receive address on the Jade's own screen and make sure it matches what your computer shows, because a compromised computer can display a swapped address. Then send a small test amount, watch it arrive, and only then move the rest. Ten minutes of patience is cheap insurance.

Fake firmware emails and other ways good backups die

The most common way people lose coins from a well backed up wallet is not burglary. It is being talked into typing the words somewhere. In September 2025, Blockstream warned of a phishing campaign sending fake Jade firmware update emails with malicious download links. Blockstream said its own data had not been compromised, and reminded users that it never sends firmware by email. Treat every email that appears to come from a wallet company as a potential phish. Both Ledger and Trezor have had customer data leaked and used for exactly this kind of targeting, so a convincing email with your real name in it proves nothing. Firmware updates come from the official app or site only, never from a link in an email. No legitimate company, app or support agent will ever ask for your recovery phrase. Any screen, form or person asking for it is an attack, full stop. And buy hardware new, from the official store or an official reseller, never second-hand. We keep a broader set of these habits on our bitcoin security page. None of it is complicated. Most of it is simply the discipline of pausing before you click.

The backup that survives you

There is one failure mode this guide cannot fix with pen and paper alone. A perfect Jade backup protects you while you are alive and well. It does nothing if you die or lose capacity and nobody else knows the words exist, where they are, or what to do with them. Families have lost bitcoin not to hackers but to silence: a device in a drawer, a phrase in a safe, and no one left who understands either. You do not need to hand anyone your words today. You need a plan for how the right person finds and uses them at the right time, and only then. That is what crypto inheritance planning is for. If you want a quick, honest measure of where you stand, our free inheritance scorecard takes a few minutes and shows you the gaps. Write the words down today; make sure they outlive you soon after.