Topic: Recovery Non Spendable BTC - page 2. (Read 847 times)

Thanks for the update... glad you managed to find the password.

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One thing to note, if you attempt to use Electrum (only download from https://www.electrum.org) to import your keys, you will likely need to add a prefix to the private key to get it to import as the correct address, due to Electrum supporting Legacy, Nested SegWit and Native SegWit addresses.

Given the age of the wallet, I'd hazard a guess that your addresses all start with a "1" (since the chances of it being a SegWit (or multiSig) wallet are relatively low, if not zero). If that is indeed the the case and your addresses do start with a "1", you need to use the "p2pkh:" prefix... so when you import to Electrum you would import as: p2pkh:YOUR_PRIVATE_KEY_HERE

for instance:
p2pkh:KxZcY47uGp9a...          -> 1DckmggQM...

I have found a copy of my password I now need to export it out of Multibit and into a supported wallet. Will report when done. Thank you for the replies.

If the new wallet that was created when you just installed multibit has a password setup (by default, they don't), you need to enter it so the keys can be imported...

However, if the password you are trying to use to unlock the .key file is not working (you get: "Private keys unlock failed" message)... then it doesn't matter if the new wallet has a password or not... As your password for the keyfile is incorrect and the .key file cannot be decrypted.

Unless you can unlock that .key file, you can't access your private keys from it.

You can always try using "file -> open wallet" and see if the application will read one of the other backup files that you have (ie. Not the .key file)... One of them *might* be a copy of your old wallet file.

It's asking me for a wallet password in addition to the key password. I only have one password and can't unlock the key file. Do I need two passwords? I notice your foo wallet in your instructions doesn't have a password.

If that is the case... Download an old copy of multibit classic from here: https://multibit.org/release-info/classic/v0.5.19.html

Install that and after running it... See if you can open the ".key" file using the instructions I posted above.

If that all works, you should be able to then export the private keys... Create the output with no password and you'll then have a plaintext file with your private keys that you can then import into the wallet of your choice.

Yes yes.. I was able to open the file in notepad++ and the plain text starts with U2FsdGVkX. Encouraging. What do I do with it now?  Thanks thanks.

It certainly wasn't a wallet created or released by the developers of the desktop MultiBit wallet... as I mentioned earlier, it was ONLY released for Windows, Linux and MacOSX desktops.

It's possible you were using the "Bitcoin Wallet for Android"... It was also based on BitcoinJ and used a backup file name format of: "bitcoin-wallet-backup-YYYY-MM-DD", which seems awfully close to what you have.

If you don't have another Android device to try installing that on to test... there are scripts available to decrypt and extract the contents of those wallet file backups.


Are you able to open either of these files with a plain text editor like Notepad (or better, Notepad++ etc)?

Do they look something like this:
Specifically... are the first characters "U2FsdGVkX"?

NOTE: DO NOT POST THE FULL CONTENTS OF EITHER FILE HERE! I don't want you accidentally pasting plaintext private keys etc!

Thanks gents for the comments.. I'm still working on it. The multibit wallet that  I downloaded (v0.5.19) is not accepting my bitcoin password. Anu1908.. yes my bits are still at my address. The Android tablet did have a Multibit wallet..  thinking around 2014-15.
If I could just talk to google maybe I could recover my device password but my device is no longer visible in google accounts recovery. If I remember correctly I was able to trade bitcoin with that tablet just by scanning the the other party's QR code without entering any password.
Thanks again

Hmmmm that fake "multibit" app is indeed a bit concerning... It certainly has no relationship to the "real" multibit, aside from the stolen name and icon

If the OP did indeed use that fake app, then that is going to make recovery very difficult... as looking at "multibit.bitcoinwallet.com" would indicate that this is a custodial wallet (ie. users simply have an "account" and no access to the private keys...

Further more, it would seem that "multibit.bitcoinwallet.com" is actually a user account named "multibit" operating from the bitcoinwallet.com domain...

Which would indicate that the "multibit.bitcoinwallet.com" app... is simply encouraging users to deposit coins into someone elses wallet on bitcoinwallet.com!


Hopefully the OP was just mistaken... and had been using another Android wallet... or the backup files they have come from the "real" multibit desktop app.

does your bitcoin still on that address? as it seems you're using a 'fake' multibit wallet as others have mentioned. if there are still some bitcoins over there, maybe tried to install the same app to check whether you can import the backup or not (though i'm not sure it's really a good thing to do). i think the files are not readable to multibit too.

another options is to forget about it (if it's not that much), because it's possible that you won't be able to recover it again.

It seems he used a fake multibit wallet I found a site where you can see a multibit for android but it looks like a web base bitcoin wallet that converted into an android app and then they rename it to multibit android.

Look at this link https://appsgeyser.io/1095845/MultiBit%20Bitcoin%20Wallet

Are you certain it was MultiBit? As far as I am aware... MultiBit was never available on mobile devices... it was Windows, Linux and MacOSX only.


Not sure what the "bitcoin-wallet-keys-date-bytes" is... but MultiBit generally created "backup" files like:
multibit-20190410143351.key
multibit-20190410143351.wallet
multibit-20190410143351.wallet.cipher

MultiBit HD created files like:
mbhd.wallet.aes


Your best bet might be to actually just install an old version of MultiBit (available here: https://multibit.org/release-info/classic/v0.5.19.html) and try to at least open the .key file that you have using that wallet... it may not be able to sync and/or send transactions, but if you could at least open the file, you might be able to then export the keys and then import them into the wallet of your choice.

In MultiBit classic, you use the "tools -> import private keys" menu option, and then the "import from ..." button:


That will allow you to open the .key file... enter the password and click the unlock button... if the password is correct, it should populate the "Number of Keys" an "Replay Date" fields:


Once you have the keys imported... you can use the "tools -> export private keys" option to create a plaintext export file (don't set an export file password, otherwise you won't actually be able to read the generated .export file as it will be encrypted and you'll be back at square one! )



NOTE: I've been trying to simply decrypt the .key file on the commandline using OpenSSL following the information posted by the MultiBit devs... but that doesn't appear to be working However, when I try to load the .key file into multiBit and use exactly the same password as with OpenSSL, it works perfectly and will import the .key file??!?

That's why I recommend to try reading it directly into MultiBit

Greetings Ladies, Gents

I purchased some bitcoin a few years ago using Multibit on a Android Tab. I no longer have access to that tablet. This is what I have.
A Bitcoin address verifiable on Blockchain Explorer.
A backup file that looks like this: bitcoin-wallet-keys-date-bytes but seems to have a null ext.
Also have a file called: date6othernumbers.key.

My question is, since Multibit is no longer supported, what wallet would give me the best chance of recovery.

Pretty much a newbie at this so any/all help would be greatly appreciated.

Thanks