The quick version. Firmware updates fix security bugs and improve the confirmation screens that protect you, so refusing them forever is not the safe option people imagine. The fear is misplaced: a wallet holds no coins, only keys, and those keys can always be regenerated from your recovery phrase. That is why the correct order is to verify your backup first, then update from the official app, then confirm every prompt on the device’s own screen.
What firmware is, and why it changes
Firmware is the software on the wallet itself: the code that generates keys, holds the PIN check, draws the confirmation screen and asks the secure element to sign. It is not the desktop or phone app you click around in, which is separate and updates far more often.
Firmware changes for a few honest reasons. Researchers find flaws, sometimes in the wallet’s own code and sometimes in a component it depends on. Networks change how transactions are built, and the device needs to understand the new format to display it correctly. New assets and address types get support.
That last category deserves a pause. Many improvements have been about showing you more clearly what you are agreeing to, particularly for smart contract interactions where one signature can grant sweeping permissions. Refusing updates indefinitely means keeping the older, less informative screens.
Why people are afraid of updating
The fear is not irrational, it is aimed at the wrong thing. Three worries come up repeatedly.
The first is “the update will wipe my coins”. It cannot, because your coins are not on the device. They are entries on a public ledger, and the device holds the keys that authorise moving them. Some procedures do reset the device and erase those keys, which is precisely why the recovery phrase exists.
The second is “an update could be malicious”. That is a real category, and it is why the delivery path matters. Legitimate firmware is signed by the manufacturer and verified by the device before it runs. The attack that actually works is social: convincing you to install something from a link, or to enter your phrase into a fake “recovery tool”.
The third is “it might brick the device”. Interruptions do happen and the recovery path is well trodden. The worst realistic outcome is the cost of a device, not the loss of your funds, provided the backup is good.
Verify your backup before you touch anything
This is the single instruction that turns a nervous procedure into a routine one. Before starting, confirm your recovery phrase actually works and actually matches this device.
“I wrote it down when I set it up” is not verification. Backups fail in dull ways: a word misspelled, two words swapped, word eleven omitted, pencil that has faded, a card damaged by damp, a phrase written for a different device and never labelled. None of that announces itself until the moment you need it.
Some devices offer a built-in check that confirms your words match the wallet without exposing anything. Where that exists, use it. Where it does not, read your written backup and confirm the words are legible, complete, correctly spelled and in order. Our walkthrough on how to back up a seed phrase covers making one that survives.
Safety: Do this check with the paper or metal copy in front of you and the words staying offline. Never type your recovery phrase into a computer, a phone or a website to “check” it. A verification that needs an internet-connected keyboard is not a verification, it is the scam.
The safe order of operations
Once the backup is confirmed, the update is mechanical. Work through it slowly and do not multitask.
- Start from the official source. Open the manufacturer’s own application, installed from their documented download page, and let it offer the update. Never follow an update link from an email, chat message, search advert or social post.
- Use a machine you control, with the original cable if possible and enough time to finish without unplugging.
- Read the device screen at every step. The wallet shows what it is about to install and asks for physical confirmation. That small screen, not the window on your monitor, is the part you can trust.
- Let it finish. Do not disconnect, do not close the lid, keep the machine off sleep and on mains power.
- Check afterwards. Confirm the device still accepts your PIN, and check that a receiving address shown on the device matches the companion app before relying on it.
If the procedure resets the device and asks you to restore, that is normal for some models. You re-enter the recovery phrase on the device itself, using its buttons or touchscreen, never on a computer keyboard. It is the same flow as our setup walkthrough, and it is the moment your earlier verification pays for itself.
If an update is interrupted
A cable knocked loose or a battery dying mid-write can leave the device incomplete. It usually looks alarming: a blank screen, a bootloader message, a device that will not open normally.
Do nothing dramatic. Do not enter your recovery phrase anywhere to “rescue” it, and do not search for a third-party repair tool. Reconnect to the same official application and retry, since most wallets can re-enter update mode and finish an interrupted write. If that fails, follow the manufacturer’s documented recovery steps.
If the device really is dead, your funds are safe. Buy a replacement through a channel you trust, using the checks in buying a hardware wallet safely, and restore from your phrase. It need not be the same brand, though passphrase handling and account types can differ between makers.
Update prompts that should stop you cold
Attackers know “urgent firmware update” is a phrase people obey, and the fake versions follow a small set of scripts.
Anything unsolicited by email, text or direct message is suspect by default, however well the branding is copied. Anything claiming your device is compromised and must be “re-synchronised” or “validated” with your recovery words is an attack, full stop. So is a page offering to check whether a breach affected you if you paste your phrase in, and so is a call from support, because manufacturers do not ring customers asking for seed words.
The healthy habit is simple. Updates are something you go and get, on your own schedule, from software you already had. They never find you.
Key takeaways
- Firmware updates carry security fixes and clearer confirmation screens, so refusing them indefinitely is its own risk.
- Verify your recovery phrase is complete, legible and correct first, because some updates reset the device.
- Only update from the manufacturer’s official application, opened by you, never from a link in a message.
- An interrupted update is a hardware problem, not a funds problem. Retry through official software, then restore from your seed phrase if the device cannot be saved.
Frequently asked questions
Do I need to update the moment a new version appears?
There is no need to rush within hours, and waiting a short while for other users to report problems is reasonable. What is not reasonable is skipping updates for years, because you accumulate every unpatched flaw and miss improvements to the screens that protect you from misleading transactions. A sensible rhythm is checking when you next use the device and applying security-flagged releases without long delay.
Will updating change my addresses or balances?
No. Your addresses derive from the same keys, which come from the same recovery phrase, so they stay the same across firmware versions. What can change is which accounts the companion app displays by default, particularly when a new address type is added. If an account looks missing afterwards, it is nearly always a display or derivation setting in the app rather than lost funds.
Can I update a device holding a passphrase-protected wallet?
Yes, with one extra piece of care. A passphrase is not stored on the device in most designs, so it will not be restored for you. You need it recorded exactly, with the same spacing and capitalisation, before you begin. Losing it means losing that wallet even with a perfect recovery phrase, so verifying it belongs in the same pre-update check.
Educational content, not financial advice. Never share your seed phrase or private keys with anyone — including anyone claiming to be CoinCrafty.
Last updated Jul 25, 2026
