I have my wallet.dat from a backup but I can't remember my passphrase

[HCP]

I don't understand what you mean...

He is saying that you can have multiple wallet files in Electrum...

The "default" wallet name is called "default_wallet"... when you attempt to create new wallets it will call it will first suggest the name "default_wallet", if that already exists it will try "wallet_1", then "wallet_2" etc. However, if you choose a custom name like "MySuperSecretWallet" then that is what the file will be called. As Electrum does NOT use a file extension (like .dat) the wallet files are called named whatever you use for a wallet name.

Note that this has pretty much no relevance to your issue whatsoever and I have no idea why the guy posted it.

[1714959520]

1714959520

[1714959520]

1714959520

[1714959520]

1714959520

[thenarog]

I don't understand what you mean...

He is saying that you can have multiple wallet files in Electrum...

The "default" wallet name is called "default_wallet"... when you attempt to create new wallets it will call it will first suggest the name "default_wallet", if that already exists it will try "wallet_1", then "wallet_2" etc. However, if you choose a custom name like "MySuperSecretWallet" then that is what the file will be called. As Electrum does NOT use a file extension (like .dat) the wallet files are called named whatever you use for a wallet name.

Note that this has pretty much no relevance to your issue whatsoever and I have no idea why the guy posted it.

I check all the wallet file... Nothing...
I think i can kill myself now.

[HCP]

In summary...

- You have an Electrum wallet file that apparently you can't unlock
- You have a CSV file of private keys that appears to recover a tiny fraction of your BTC
- You have a seed which appears to recover some of your addresses, but doesn't show balance and/or transactions

There are several possibilities:
a. Your wallet file got corrupted
b. You typed the wrong password in when setting it (capslock, fast typing etc)
c. Your CSV backup was exported before the keys currently holding the bulk of your BTC were generated
d. You have literally hundreds (thousands) of addresses (mining? fauceting?) and when you restore, the keys holding the bulk of your BTC are out past the gap limit and Electrum is simply not generating them
e. You have the wrong seed
f. You set a BIP39 "passphrase" (ie. added "extra word" in Electrum) when creating the wallet seed

- a. and possibly b. explain why you can't unlock your original wallet file.
- As you claim you ARE seeing previous addresses when restoring from seed, I'd guess that e. & f. are not the cause of your problem.
- c. and d. seem to fit the situation you have where you are now seeing SOME of your BTC and addresses, but not all of them.

You could try getting Electrum to generate thousands of receive and change addresses from the seed that you have and see if any history and/or balance shows up... the critical part is that you MUST see addresses/keys generated that are also shown in the CSV export for you to have any chance of success.

If the addresses/keys generated from seed DO NOT match addresses/keys in your CSV export file, then your seed is WRONG

To try and generate a thousand "receive" and "change" addresses:
- Restore from seed
- If it isn't already enabled, enable the console ("View -> Show Console")
- Run this command:

Code:

for x in range(0, 1000): print(wallet.create_new_address(False))

- Run this command:

Code:

for x in range(0, 1000): print(wallet.create_new_address(True))

NOTE:
- These commands are for Electrum v3+, they may not work on Electrum v2
- These commands will likely take a LONG time to complete. There is also a chance that it will make Electrum run slow. Increase (or decrease) the 1000 value to generate more (or less) addresses as you wish.

[thenarog]

Hi,

I try many ways to unlock my wallet . I ask to Dave, still no response. I try professionnals, nothing. Months i 'm trying to find a way...
Nothing works.
Now i have only one question to maybe find a solution :

Can i recover seed from a list of private keys ?

Thanks for your help.
Regards,

@HCP
@Near28
@bob123

[bob123]

Now i have only one question to maybe find a solution :

Can i recover seed from a list of private keys ?

No, this does not work.

It is not possible to calculate the seed (or the mnemonic code) out of one or multiple private keys.
The child-private-key-derivation function does use HMAC-SHA512. The only option would be to bruteforce it, which is practically not possible (2²⁵⁶ is too large to bruteforce).

[HCP]

Can i recover seed from a list of private keys ?

No, this does not work.

Unfortunately, bob123 is correct. You cannot recover the seed just using a list of private keys.

[thenarog]

Can i recover seed from a list of private keys ?

No, this does not work.

Unfortunately, bob123 is correct. You cannot recover the seed just using a list of private keys.

So what now ? It's over for good ? Damn i'm sure about my password , i wrote it on notepad , paste it on Electrum when i change the password. Then, i changed electrum version, and now i'm dealing with this problem for months. And i can't understand why my seed doesn't works.
Fuck Electrum, the software is not safe.
2.5 bitcoins in the wind... Can't believe this shit.

 

[bob123]

So what now ? It's over for good ? Damn i'm sure about my password , i wrote it on notepad , paste it on Electrum when i change the password.

Don't you have several backups of your wallet file?
Because either your password is wrong or your wallet file is corrupt.

And i can't understand why my seed doesn't works.

Because it is not the correct seed.
Or it may be the correct seed but previously used in another wallet with another derivation path.

But according to your story it is most probably not the correct seed.

Fuck Electrum, the software is not safe.

98%+ of problems appearing on a computer are caused by the user in front of it.
Electrum is safe, if you do follow each step conscientiously.

[decoder88]

I'm sure I didn't enter a long complex password. Maybe maximum 15 chars long and that's a real maximum, probably shorter.
But I have no idea what the password would be. But I don't think i used anything other than 0-9, A-Z, a-z, and maybe something like an exclamation mark or questionmark... but that will probably be it.

Is there an application that would allow me to brute force this?

I think maybe btcrecover can do this? But is it able to generate all possible combinations for every 15-char long password?
I was unable to find in the manual how to do this.

any help is greatly appreciated!!

In that case, you should try Ledge Nano S and it will help you to solve your problems. If your wallet can access and it doesn’t noy matter to use, I suggest leave the older one and create a new account.

[inspirone1]

Is it possible that you have imported a private key sometime in the past?
Those are not included in the seed.

Yep, it is some way of protection of Bitcoin. Not good for us, but you can recover your wallet. I think the best way is to save passwords in notes.

[richpham]

I can feed it a wordlist but that's not  what I need here..
I already tried a custom wordlist with all passwords I can think of
But I can't find out how to run btcrecover and

[thenarog]

I dig up this old topic. Now with the problem on Electrum i'm pretty sure of my password and i was hacked.
When i downloaded the last version of Electrum, i was f...

So now, can i ask Electrum to refund my lost ?