You lost access to a wallet. What can actually be done

Most writing on this subject is produced by people selling recovery. It therefore tends to imply that everything is recoverable. It is not, and the difference between the two cases is knowable in advance — usually within a few minutes, from what you still have.

Before anything else: stop and write down what you have. Every fragment. Which wallet software or device it was, how many words, any words you remember and their positions, any PIN or passphrase, any address you know funds were at, screenshots, old backups, the email address the exchange account used. Do this before experimenting, because the second most common way people lose a recoverable wallet is by overwriting or resetting something during a panicked attempt.

And do not, at any point, type your phrase into a website. Not into a "wallet checker", not into a "recovery tool", not into anything a support agent sends you. Anyone in your position is being actively hunted at exactly this moment, and the offer to help will arrive quickly. How to spot a recovery scam is worth reading before you talk to anybody.

These cases are genuinely recoverable, and often quickly:

Words in the wrong order. Very common with a phrase copied hastily or transcribed from a photo. Seed phrases carry a built-in checksum — the words are not independent, and only a tiny fraction of orderings produce a valid phrase at all. That is a huge constraint, and it makes systematic reordering tractable rather than hopeless.

One or two wrong or misread words. Handwriting is the usual culprit. The standard word list is fixed at 2,048 entries, so a word that is not on the list is definitely wrong, and the candidates for what it should have been are constrained by both spelling and the checksum. Confusable handwritten pairs are a well-known set.

A missing word or two from a phrase you otherwise have. Harder, not hopeless. Each missing word multiplies the search, but the checksum prunes most of it, and a known address to check against turns the whole thing into a search with a definite answer.

A phrase that is correct but restores an empty wallet. Frequently not a lost-key problem at all. The wallet may be scanning a different derivation path, a different address type, or the wrong chain — the funds are exactly where they were, and the software is looking in the wrong place. Trying the same phrase in a second, standards-compliant wallet with the path options exposed resolves a surprising share of these.

A forgotten passphrase on a known-good phrase. Recoverable only if you remember roughly what it was, because a passphrase is unlimited-length free text with no checksum. If you remember the components and are unsure of capitalisation, spacing or a trailing digit, that is a finite search. If you have no idea what it was, it is not.

These cases are not recoverable, and no one can change that:

No phrase at all, and no backup. A private key is a number in a space so large that searching it is not a matter of more computers or more money — it is beyond what is physically possible. Anyone claiming to brute-force a key from nothing is lying, without exception.

A custodial account you cannot prove is yours. Here the funds are held by a company, so the question is identity, not cryptography — and it is answered by their support process, not by any technical work. Slow and frustrating, but it is the only route, and a "recovery expert" cannot help with it.

Coins sent to a wrong address, or on the wrong network. If nobody controls the destination, the funds are gone permanently. If somebody does — an exchange, for instance — recovery is a support request and depends entirely on their policy and whether they support that asset. There is no technical remedy either way.

A wallet on a device that was lost or wiped, with the phrase also gone. The phrase is the wallet. Without it, the device is a device.

The honest triage, in one line: if you still hold most of the phrase, or the phrase and a partly-remembered passphrase, there is real work that can be done and it is arithmetic. If you hold neither, the answer is no, and anyone telling you otherwise wants the fee.

What to do while you decide. Keep everything you found in one place, on paper and offline. Do not reset or reinstall the wallet that holds the fragments. Do not post publicly that you have lost access — that message is monitored, and the replies are the scam. And be sceptical of any fee charged before a recovery has happened: a service confident of the outcome does not need paying in advance.