Have you accidentally visited and tried this page of blockchain for its legacy wallet recovery https://login.blockchain.com/wallet/forgot-password. I'm sure it would help.

[edit] Seems you have a weird numbers there, can you tell us if what is the numbers of your recovery seed exactly?

Would you answer my edited post above?


Have you tried to double check the spelling of the words as well? You might put some misspelled words.

I doubt that seed that was generated for the blockchain.info's wallet back in the day was the standardized seed. It was more like a random set of words generated that uniquely identified a wallet's private key and not directly associated with it. Support is still your best bet. How many bitcoins are we talking here anyway?

Patatas is right, what you need is their aes.json file as the keys lie there.

If found, import them here: https://login.blockchain.com/wallet/import-wallet
Then the recovery phrase comes into play if you don't know the password. You can use the link on the first post for that, but I see that there was an error??? errr... hmmm I guess let's worry about it after you find the files.

afaik that phrase can be used only to recover forgotten password, and you will still need to remember wallet identifier
but you said it returns "Invalid Checksum", so perhaps you mistyped or lost one of the words?
btw... is this the mnemonic you get when creating the account or the address?
I asked, because my note shows there are 2 different phrases for my old blockchain account,
one for wallet recovery and another for paper wallet I created there

it's not a seed phrase, they called it as "Wallet Recovery Mnemonic" to work specifically only on blockchain site
this random length mnemonic exist for wallet created before HD wallet becomes standard wallet on the site

Hello.

Yes its possible to derive the info needed to open the wallet with those words. we just did this here:
https://www.reddit.com/r/Bitcoin/comments/kyfiih/i_had_my_initial_doubts_but_a_wallet_recovery/

Let me know if you still need help
/KX

That's the same link OP mentioned in the first post and it didn't worked, he said it returned with "invalid checksum".

I have long had a couple of abandoned wallets that were opened on blockchain.info in 2014.  Then, before them, the devs of this wallet came up with a seed phrase consisting of 16, 17, 19 words.  In my case it is 17 words.  I decided to try to restore access to these old accounts, although there is very little on them, maybe only ~ 1000 - 2000. sat.   But I was just wondering if I could get access to them and find out the real seed phrase to these 12-word in mainet accounts.  I used a service to find the wallet number and password, which is discussed above in this thread.  But I don’t remember, it seems like I didn’t report any of my email to blockchain.info at that time.  I don't remember at all?  But even if I sent them an email address, it was still lost.  So, on this specified service, I reset 2FA and entered a new email in the appropriate column, to which I naturally have access.  Then I received a notification that the recovery process had started.  And another message that the recovery process can last up to 2 weeks.  

Actually why am I writing in this thread.  I'm running an experiment and will report here how this recovery system in blockchain.info works.  How does support work and will I need to contact support again or several times.  Will support respond and what will they say?  And will I eventually be able to restore access to this custodial wallet?  I did all this yesterday.  So far there has been no response from blockchain.info.  When I enter my wallet number and password, it says that I need confirmation by email (to which I do not have access).  So far it's a vicious circle.

It appears blockchain.com can at least tell you the registered email address in your account? so keep pushing onto that  


I wonder if you have the json file (wallet backup file) with you? From what I saw, blockchain.com barely provides help when it comes to legacy accounts so if you don't have that, your chances are much more slimmer than before. They also advertise the wallet as non-custodial so I guess they can take a "we're only a software provider" stance or something similar.


Sorry it wasn't clear to me but what was the specified service? keychainX? or this--https://login.blockchain.com/wallet/forgot-password?

Of course I don't  .json.  Apparently it would be easier with this file.

Yeah, https://login.blockchain.com/wallet/forgot-password

Yeah!  You wrote everything correctly.  
It was through this link that I reset the 2FA authentication.  
However, of course, I do not have access to the old email that was used during registration.  
All I have is a 17 word passphrase and I know exactly when the wallet was created.  On the other hand, a cryptocurrency wallet service provider such as blockchain.info or Blockchain.com must develop rules of action in case the owner of the wallet loses access to the email from which he would have been registered.  This is a fairly common everyday situation.  

So I'm trying to figure out how to restore access to this custodial wallet using devs Blockchain.com.  I wrote in a letter to support the wallet id and the exact date of its creation.  And I wrote to them that I had 17 words of a passphrase "seed"?.
By the way, the service you specified from Blockchain.com allows you, knowing 17 words, to recover both the wallet id and password for logging into the wallet.  

I haven't received a response from support yet.  
But I will continue the experiment and report the results here in this thread.