Wallet recovery / Practical guides
A BIP39 passphrase combines with your recovery words to derive a separate wallet. You need the same words and exact passphrase to recover it. A typing mistake can open an empty wallet without showing an error. Here’s how to understand the setup and check your recovery plan.
By Crypto Dispensers · Published and reviewed
BIP39 describes how a mnemonic and an optional passphrase produce a seed used for deterministic wallet keys. An empty passphrase is also a valid input. With the same mnemonic, changing the passphrase changes the resulting wallet. See the BIP39 specification for the derivation and normalization rules.
People sometimes call it a ‘25th word.’ That nickname can be confusing: a passphrase can contain multiple characters or words, and its allowed input depends on your wallet. You choose it separately from the wallet-generated recovery words. Never replace one of those words with a password you invented.
If you’re still learning what the recovery words do, start with our seed phrase and wallet recovery guide. A passphrase adds a recovery requirement. Decide whether you can maintain that extra requirement before using it.
| Item | Purpose | Recovery question |
|---|---|---|
| Recovery words | Represent the mnemonic backup used to derive wallet keys. | Do you have the complete, correctly ordered backup? |
| BIP39 passphrase | Combines with those words to derive a particular wallet. | Can you reproduce the exact passphrase used for that wallet? |
| Device PIN | Controls access to the particular device under its security design. | What does that manufacturer require if the PIN is lost? |
| Exchange account password | Signs you into a provider’s account. | What is that provider’s official account-recovery process? |
A provider’s password-reset email does not recreate a lost self-custody passphrase. Follow your wallet manufacturer’s recovery instructions rather than treating every secret as interchangeable.
A different passphrase can produce a valid wallet with no history. Trezor’s passphrase-wallet guide explains this behavior and a known-address recovery check. An empty balance alone cannot identify the cause.
| Check | What to compare privately | What you can tell support |
|---|---|---|
| Wallet selection | Standard wallet versus the intended passphrase wallet. | The wallet type selected, without its secrets. |
| Exact input | Capitalization, spaces, keyboard layout and the original record. | Whether you checked these, without sending the input. |
| Backup | Correct mnemonic, word order and supported backup format. | Wallet model and backup format, without the words. |
| Account discovery | Correct asset, network, account and address type. | The public transaction ID if needed; consider its privacy implications. |
| Known receiving address | The manufacturer’s documented comparison procedure. | Whether it matches; avoid posting your financial history publicly. |
If anything remains unclear, pause before resetting a device or deleting a working wallet. Use the manufacturer’s official support channel. Keep the recovery words and passphrase out of chats, screenshots, remote-support sessions and online recovery forms.
Imagine an unfunded training wallet. Its owner uses one mnemonic with the invented passphrase Maple Harbor 7, then later types maple Harbor 7. The first character changed case. These inputs derive different BIP39 wallets. The second can be empty and still be a valid result.
This example illustrates input matching. It is a public example and must never be used as a real secret. Adding a passphrase also does not transfer an existing balance: moving assets between wallet addresses requires the appropriate actual transaction, with its costs and risks.
Keep a private record of how you identify the intended wallet and a known receiving address for recovery checks. An address is public blockchain information, so protect the record’s privacy too. Avoid including your balance, backup location and all spending secrets together.
A weak passphrase can be guessed by someone who has the mnemonic. A difficult passphrase that you cannot reproduce can also cause loss. We do not provide a passphrase generator or ask you to enter wallet secrets on this page.
Recovery depends on reproducing the required input. There is no central BIP39 password reset. Trezor explicitly states that its support cannot recover a lost passphrase. A promise from a stranger to unlock any wallet is a reason to stop and verify the claim.
If your wallet is still accessible, preserve that access while you consult official instructions. If a secret may have been disclosed, use the manufacturer’s compromise guidance. Changing a passphrase produces a different wallet; it does not remove access to funds held at the old wallet’s addresses.
Our team can help with Crypto Dispensers service records and receiving requirements. Wallet manufacturers are the appropriate source for device recovery procedures. Never send us your recovery words or passphrase.
Reviewed by the Crypto Dispensers team on November 2, 2026. Technical basis: BIP39. Wallet-specific behavior and recovery checking: Trezor’s passphrase-wallet instructions. The fictional example and troubleshooting worksheet are our explanatory material.
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They are separate inputs. The mnemonic recovery words and the optional passphrase together determine the BIP39 seed. Keep a recovery plan for both if your wallet uses a passphrase.
A different passphrase derives a different wallet. It does not reassign balances held at existing addresses. Follow your wallet’s instructions before taking any action.
A different passphrase can derive a valid, empty wallet. Check the exact input, intended wallet and known-address comparison using the manufacturer’s recovery procedure.
Someone who obtains both may be able to access the wallet. Consider separate controlled storage, along with a realistic plan for loss and authorized recovery.
Before a purchase, check your receiving wallet and the supported network. Our Bitcoin buying page explains the available payment methods and where to review conditions.
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