50 votes

Is there a 'BTC Refund Department'?

I have been scammed 6 months ago Then criminals expect you to be gullible and foolish. You are a prime target for them. So they'll try new ways to trick you. BTC REFUND DEPARTMENT No such thing. ...
user avatar
25 votes

Wallet gone and lost recovery phrase, how to get back my bitcoins?

Your bitcoins are lost forever, unless you have the key. Let this be a lesson learned to always write down your keys on paper. There are no ways to recover your bitcoins without the key.
user avatar
  • 431
15 votes

opening an old wallet.dat

I recently recovered an old wallet.dat file using pywalley.py and Electrum, which allowed me to read the wallet and sweep the coins to a new Electrum wallet. Steps: Get the jackjack pywallet https://...
user avatar
13 votes

Lost my Bitcoin wallet and have only 11 out of 12 mnemonic seed phrase words. How can I get my Bitcoins?

If you are missing the first word and you know the rest of the 11 words, there are 2048 possible mnemonics but only ~128 of them are valid. Using Python and this library you can print all the valid ...
user avatar
  • 3,145
10 votes
Accepted

Is the Electrum seed compatible with other wallets?

There are different "backup-standards". Some use BIP39 (mnemonic) which lacks a flexible wordlist and versioning. It's used by Ledger, Trezor, Bitpay/Copay, etc. Electrum uses a different – more ...
user avatar
10 votes

How can I find a Bitcoin private key that I saved in a text file?

If you're programming savvy you could write a small program that searches for the regular expression of a Bitcoin private key. Bitcoin private keys have a very specific format: They are 51 keys long, ...
user avatar
  • 62.3k
9 votes

Wallet gone and lost recovery phrase, how to get back my bitcoins?

You need your 12 words to get it back. Just that. There is no other way. No bank, no insurance company and no helpdesk that you can turn to. No person or computer in the world is able to recover the ...
user avatar
9 votes

Wallet gone and lost recovery phrase, how to get back my bitcoins?

Depending on what kind of phone you have and depending on what program you used to store your words, you may be able to find a copy of the data on Google Drive (Android default), OneDrive (Microsoft ...
user avatar
9 votes

Why do people go looking for old hardware that has a wallet?

Are you talking about the people who mined or bought bitcoins in 2009 - 2011 and are surprised that the price is that high now? HD-wallets (wallets with such a recovery phrase, it's called seed) are ...
user avatar
  • 2,047
9 votes

Can I recover btc sent to an incorrect address? (electrum)

Can I recover btc sent to an incorrect address? Confirmed Bitcoin transactions cannot be cancelled, reversed, undone or recovered. The only person who can give you your money back is the recipient, ...
user avatar
7 votes
Accepted

In a multisig wallet setup what needs to be backed up and why?

Ben Kaufman answered this on Twitter. The main caveat in a multisig wallet is that, while you need only a threshold of devices (ie. 2 of 3, 3 of 5, etc.) to sign a transaction, losing access to even a ...
user avatar
7 votes

Is it not possible to have password reset feature in Bitcoin Core Wallet?

Because it could be used by anyone with access to your device. You may as well have no passphrase and leave the wallet completely unprotected. Businesses can offer a password reset for an account ...
user avatar
5 votes

I've deleted my wallet and never backed up my files. How can I recover my coins?

First, don't panic! Second, make an image backup of the wiped drive to a physically different drive. Third, you maybe able to recover the deleted files with tools such as magic rescue so long as the ...
user avatar
  • 181
5 votes
Accepted

Bitcoin Cash accidentally sent to Bitcoin address. Can I get them back?

In my case I sent the Bitcoin Cash to an address created by a Mobile Bitcoin (!) wallet from btc.com. The support from btc.com told me the solution: B) You have sent BCC to your BTC wallet: 1. ...
user avatar
5 votes

How to generate recovery phrase from private key

Firstly, it is highly recommended not to use a brainwallet, your coins will be stolen. But in general, if you have a private key, there is no way to obtain the 12 word recovery phrase from it. That ...
user avatar
  • 11.3k
5 votes
Accepted

How to generate recovery phrase from private key

A short working example is worth a 1000 words. % echo -n "This is a VERY pooor low entropy brain wallet" | bx base16-encode | bx sha256 | cut -c 1-32 | bx mnemonic-new health boil host ostrich fire ...
user avatar
  • 2,917
5 votes

Recover Bitcoin From Transaction ID

All of the information in the screenshot is publicly available. And no, they won't be useful for recovering your Bitcoin. If you used Electrum, you either need the wallet, the recovery phrase(seeds) ...
user avatar
  • 1,255
5 votes
Accepted

How to recover funds from a force-closed Lnd lightning channel?

In c-lightning the per commitment point is derived from the hsm_secret using per_commit_point from: The node id / public key (can be found with listfunds, until the channel is purged some time after ...
user avatar
5 votes

How can I recover the missing end of my private key?

TL;DR: You don't need to bruteforce anything here (at least almost), and can recover the missing last 7 characters on an average PC at home within less than 1 second using a simple Python script! In ...
user avatar
5 votes
Accepted

Can I "duplicate" a wallet using a backup phrase (12 words)?

Can I “duplicate” a wallet using a backup phrase (12 words)? Yes Where is my balance stored? Both wallets will scan the relevant parts of the public transaction-journal ("blockchain") to ...
user avatar
5 votes

I have lost my wallet, what can I do?

I had an account on a website, but don't remember which one Search your email account for an account creation confirmation email. Helpful search terms may include "bitcoin", "wallet&...
user avatar
  • 62.3k
4 votes
Accepted

Would I be able to recover coins if Trezor went out of business?

Yes. Trezor uses BIP39 and is compatible with any other wallet that would. You can in fact import your seed into electrum, though this to some extent defeats the purpose of having a hardware wallet.
user avatar
  • 76
4 votes

Bitcoin Cash accidentally sent to Bitcoin address. Can I get them back?

Bitcoin and Bitcoin Cash use the same address format. This means that if you take the key from your Bitcoin Core client, and import it to your Bitcoin Cash client, the Bitcoin Cash client will be able ...
user avatar
  • 28.6k
4 votes

Restore Wallet From Jaxx to Coinomi: ETH missing (but BTC and LTC are fine)

Jaxx uses a different derivation path than Coinomi when handling ETH. Coinomi opted for the path as described in the ETH specification. Ledger has the same scheme as Coinomi. Jaxx: M/44H/60H/0H/0 ...
user avatar
4 votes

Can I recover my own wallet from the public key?

This is impossible. The whole point of public key cryptography is that the public key can be shared with anybody, without compromising the private key. If there were a way to recover the private ...
user avatar
4 votes

Can a BIP39 12-word mnemonic be used to restore a wallet through bitcoin-cli?

Bitcoin Core does not currently support BIP 39 mnemonics nor the size of the BIP 32 seed produced by a BIP 39 mnemonic. BIP 39 produces 512 bit seeds, but Bitcoin Core currently only supports ...
user avatar
  • 60.4k
4 votes
Accepted

are checksums included in mnemonic seed phrases?

I am assuming that you are talking about BIP 39 here. A BIP 39 mnemonic can have any number of words with the most common being 12, 18, and 24 words. There is a checksum encoded into this mnemonic. ...
user avatar
  • 60.4k
4 votes

Help recovering BitPay wallet Reward!

What can I do? You could find tools that automate the trying of various combinations of seed-words. Some are mentioned in similar questions here. For example btctools, btcrecover. Use them or adapt ...
user avatar
4 votes
Accepted

If hardware wallet provider disappears, can I still manage my coins?

I understand these wallets only work with provider's mobile app, online interface or their computer software, correct ? No. Some of the most popular hardware wallets are supported by third party ...
user avatar
  • 60.4k

Only top scored, non community-wiki answers of a minimum length are eligible