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1  Bitcoin / Bitcoin Technical Support / Re: Unusual mnemonic seed and alternative recovery options on: June 15, 2024, 09:13:23 AM
Just 4 words without any information, what makes you even think there is a wallet?

A correct wallet ID, password (that the login page accepts and then shows the 'Email authorization' message) and address that I have checked exists.

Those old mnemonic is still supported by the link I provided in my first reply, recheck my note of what it'll present you if the mnemonic is valid.
If it's a valid old account recovery mnemonic, it should be valid there; but the result is negative. (the page for their new BIP39 mnemonic is different)
Usually Blockchain's old mnemonic is longer than 12 words but I never heard of 4 words.

It's probably that we didn't write down all of the words yeah. Probably would take years to brute force the remaining 6 words out of that 60,000 list.

I'm not sure that page works with the old mnemonic lists though, it returns 'unknown word' for one of my mnemonic words that is certainly in this list: https://web.archive.org/web/20180406224820/https://blockchain.info/Resources/js/mnemonic/mnemonic_words_v3.txt

Sounds like them.
Check this thread for reference on how inconsistent their support is: http://bitcointalk.org/index.php?topic=5147174.msg63872145#msg63872145
Go back to page3 to see how their customer support missed the whole point of the user's query.

The good news is, with the proper explanation, patience (some reply took weeks) and luck (to get to an actual technical support).
Both users got to change their linked Email address (link to post). (read the thread and see if you can replicate what they did)

Thanks, I'll take a peek and keep trying.
2  Bitcoin / Bitcoin Technical Support / Re: Unusual mnemonic seed and alternative recovery options on: June 14, 2024, 01:40:19 PM
An update on this. I read around and looks like the four words that were saved aren't mnemonics in the same sense. This was before the new implementation on blockchain.info and they're passphrases related to decrypting wallet id and password.

The four words we have saved aren't in any BIP39 wordlists but I found them on an archived page of blockchain.info in a mnemonic_words.txt file. There is about 60,000 not 2048 words.

So it's not a brain wallet as someone said. I already tried bitaddress.org but it didn't give me my correct wallet. It seems it's a phrase that was given by blockchain.info itself.

It looks like this page used to be used back then to decrypt wallets in such case : https://blockchain.info/DecryptWallet.html. But that redirects to this tool which doesn't even work : https://github.com/blockchain/my-wallet-backup-decryption-tool

It's crazy that I can't restore my wallet when I have the correct wallet id, correct password, correct bitcoin address, and a mnemonic from an outdated system that blockchain.info provided almost 10 years back and which they don't support anymore.

Blockchain.com's support is not very helpful with this. I don't think the current support staff even know what blockchain.info was back in 2015 or that this was before they provided seeds that are like private keys. Support are asking for the registered email address so they can update it on file but we have no idea which email address back then was used and if we still even have access to it.

Is there any other way to recover a wallet using these old blockchain.info mnemonic words?
3  Bitcoin / Bitcoin Technical Support / Re: Unusual mnemonic seed and alternative recovery options on: September 19, 2023, 03:26:03 PM
The context of this part could either be:
  • the email and that email's password
  • the email and the password used to register to the platform
So which one is it?

With the email and Blockchain account password, she basically has everything she need to login to their website: https://login.blockchain.com/en/#/login?product=wallet
If it's only the email's login credentials, she'll have to go through their 'forgot password' procedure.

The second one. Only problem is that when she entered the email address in the login page, she didn't get any verification email, so she probably changed the linked email account in her blockchain.info settings but doesn't remember.

She tried to login with the wallet ID instead of email, which asked for her password, which then gave a "Authorization required, check your email" message. So I'm assuming she also had two factor authentication.

The old version of Blockchain's recovery mnemonic can be recovered here: login.blockchain.com/wallet/forgot-password
If it accepted the old mnemonic, you'll be presented with your wallet ID and password.
But I highly doubt that the 4-words mnemonic will be valid, but it's still worth the try.

Tried but gave checksum invalid. I am not sure if possible to create a wallet.aes.json file with her info and then import here: https://login.blockchain.com/wallet/import-wallet

Or could the two factor authentication be the issue ? I'm guessing asking Blockchain to turn it off is the only solution or ?
4  Bitcoin / Bitcoin Technical Support / Unusual mnemonic seed and alternative recovery options on: September 18, 2023, 10:22:16 PM
I'm trying to recover a wallet from around 2015 or 2016 for an elderly relative who has some details but can't remember which platform or which wallet she used to create it.

She has the following written down :

- the seed which has only four words (I'm guessing she lost the other ones)
- the email address she used to create it (she says she cleans up her inbox though so there's probably nothing useful in there)
- the email and password she used to register on the platform or wallet
- the account ID with lowercase letters and numbers separated by a hyphen

I tried recovering using the four-word seed in Electrum just in case (the address is a Base58 P2PKH legacy address) but it didn't show up.

Is there any way to recover using the account ID? Is that type of lowercase hyphenated ID a feature of a blockchain.info account? Is my only option to contact blockchain.com here? Or literally just trying Forgot Password on every platform that was around in 2016?

Many thanks in advance !
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