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Showing 20 of 1,227 results by flatfly
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Board Bitcoin Discussion
Re: found old HDD from 2012. reactivated it on 25 july, then crashed. wallet inside?
by
flatfly
on 08/09/2025, 19:52:15 UTC
hi, i have it inform of a qrcode with pasword below.

i hav a wallet.dat file  which has a form of code that i dont underwtand, its more in the form of symbols than lettrs or digits

Before going any further, as a safety measure be sure to make several copies of the wallet.dat and password to avoid losing them again.
Also beware of any scammers trying to contact you by PM. 
Post
Topic
Board Electrum
Re: How do I connect to servers?
by
flatfly
on 07/09/2025, 12:52:02 UTC
I did he AV stuff. Electrum not listed as a threat. And I switched the AV protection off and started Electrum, and still not connected.

But I found the log files and inhem is this:
interface.[ex.btcmp.com:50002] | disconnecting due to: ErrorGettingSSLCertFromServer(ConnectError(ConnectionRefusedError(22, 'The remote computer refused the network connection', None, 1225, None)))

So it eems the remote servers listed by Electrum are refusing to connect to my computer.
Do I need to have my Electrum verified or authorised? By using signatures?

 

You could try to add some of the servers to your hosts file
See:  https://github.com/spesmilo/electrum/issues/4940

(or try from another computer if possible.)

In any case, it looks like something specific to your system. 
Electrum has been rock solid lately, no downtime for the last few weeks / months.

Post
Topic
Board Electrum
Re: How do I connect to servers?
by
flatfly
on 04/09/2025, 16:48:32 UTC
Button is red

No special network  

When I change from auto-connection to manual selection and select a server nothing happens or changes, ecpt the name of the servere in the server field changes to to the server I selected

Try right-clicking on a server in the list and click "Use as server".  The network icon should turn green.  If it doesn't, check if your AV or firewall is blocking some outgoing connections.
Post
Topic
Board Bitcoin Technical Support
Re: Need Help Cracking Old Bitcoin Wallet — Hash Inside
by
flatfly
on 03/09/2025, 20:54:06 UTC
Bruteforcing the password (using a strong GPU setup) is feasible if the password is short, but I wouldn't bet the farm on it.

Over the years I managed to help other users recover their wallet passwords, using my GPU rig - of course, this is only feasible if the password isn't too strong.  My most recent successfully recovery was this one (Electrum password):

https://bitcointalk.org/index.php?topic=5228226.20

My fee is more reasonable than some of the larger recovery companies. Happy to provide more by PM.
 
Note that the more context information you can provide, the better the odds of success. Also, I don't work on stolen wallets.
Post
Topic
Board Bitcoin Technical Support
Re: Bitcoin node 2009....HELP.
by
flatfly
on 30/08/2025, 15:51:52 UTC
I have a bitcoin application from 2009.  I would like to try to get it running again to see what's in it?  Any help?  I have it saved on windows 7.  It was last accessed via VM on windows 7.  I believe the file to be from Windows XP or from windows vista.  I have a block with the corresponding signature and id like to use atleast one for my family.  Anyone willing to help?

Post screenshots, post signatures if you want help.
Vague statements are a waste of time for everyone.
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Topic
Board Bitcoin Technical Support
Re: YaY! I just found 1.btc in my old wallet.dat file now how do I get it out?
by
flatfly
on 29/08/2025, 04:54:57 UTC
So anyone able to help me figure this out its on an old legacy wallet from a wallet.dat file of mine and I did encrypt it but can most likely hash the password I put I have a good idea on what it may be but if you know how I can bypass this I will give whoever 10k reward its been so long since i messed with this stuff an I was way smater back then.

https://www.blockchain.com/explorer/addresses/btc/1ApiCgLSysQFeF7V2MFTEHiRsep7AR8Pyx right here is the wallet I got from a dump on receiving addresses on the .dat file for proof

Did you have any luck recovering this?
 
If not, feel free to shoot me a PM - FYI I managed to recover a long-lost wallet password for another member just a few days ago (using my multi-GPU setup).
See:  https://bitcointalk.org/index.php?topic=5228226.0
Post
Topic
Board Electrum
Merits 1 from 1 user
Re: wallet password invalid after upgrade
by
flatfly
on 23/08/2025, 08:37:58 UTC
⭐ Merited by Cricktor (1)
Thanks!  I'd rather not provide a lot of detail on specific cases, but in a nutshell the first challenge was to manually reconstruct the damaged wallet json to be valid. Once that was done, password recovery was rather quick (using my multi-GPU setup), as I was given some pretty helpful hints, and the password itself was not overly complex. Even pure brute force probably would have cracked it as well.
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Topic
Board Bitcoin Discussion
Topic OP
Apple Issues Urgent iOS Update to Fix Zero-Click Hack
by
flatfly
on 22/08/2025, 22:55:50 UTC
That's a nasty one.  Emergency patches for iOS, iPadOS, and macOS have been issued:

  • iOS 18.6.2
    iPadOS 18.6.2
    macOS Sequoia 15.6.1
    mac OS Sonoma 14.7.8
    mac OS Ventura 13.7.8

https://cryptonews.com/news/apple-issues-urgent-ios-update-to-fix-zero-click-hack-putting-crypto-wallets-at-risk/
Post
Topic
Board Services
Re: Electrum wallet rescue
by
flatfly
on 22/08/2025, 22:36:18 UTC
Just completed another successful recovery of a long lost Electrum wallet!  Topic here:

https://bitcointalk.org/index.php?topic=5228226.msg65723409#msg65723409 
Post
Topic
Board Electrum
Merits 2 from 1 user
Re: wallet password invalid after upgrade
by
flatfly
on 22/08/2025, 22:32:53 UTC
⭐ Merited by Cricktor (2)
I'm happy to announce that I was able to complete bb3456's wallet recovery!
 
The lost btc has been recovered, after being stuck in limbo for almost 10 years. 
The job was a technical challenge on several levels, but it all worked out just fine in the end.

@bb3456  Many thanks for your trust, and the very nice fee.
 
Post
Topic
Board Electrum
Re: LoyceV's 0.1 sat/vbyte Electrum Server Adventure
by
flatfly
on 16/08/2025, 07:25:51 UTC
Quote
electrum.labrie.ca

Confirmed, I was able to make a 0.3 sat/vB tx using this server.
I don't know how you got it to work because it didn't work for me. After I switched to the server, I saw the usual notification that the server won't broadcast my transaction when I set the transaction fee below 1 sat. I restarted Electrum a few times but that didn't work either. When I closed the send tab a few times and opened it again, it allowed me to enter a few below 1 sat/vByte without that notification popping up and the "preview" button became clickable. But what I noticed was that the equivalent amount in USD was as if I had set the fee to 1 sat/vByte. The wallet didn't lower it regardless if I set it to 0.7, 0.5, 0.3 sats, etc. There was also a notification next to the total fee that said "xxx amount of sats will be added to the transaction." It always added enough to make the fee 1 sat/vByte.

Are you sure you didn't see the same and you just think that you broadcasted the transaction at 0.3 sat/vByte when in fact you didn't?

I tried another 0.4 sat/vB tx to be sure, and it just worked. I'm not using a custom build of electrum or any unusual settings.

https://mempool.space/tx/254bb8d64d33efc89873e56a45b456b37f102fb34215b628b2064ba57f11d931

No idea if I'm just lucky or something. Smiley   This is the server I'm currently connected to: electrum.pabu.io:50002
Post
Topic
Board Electrum
Re: LoyceV's 0.1 sat/vbyte Electrum Server Adventure
by
flatfly
on 15/08/2025, 07:26:06 UTC
Quote
electrum.labrie.ca

Confirmed, I was able to make a 0.3 sat/vB tx using this server.
Post
Topic
Board Electrum
Re: wallet password invalid after upgrade
by
flatfly
on 15/08/2025, 05:52:51 UTC
This is what I'm starting to discover.  Since I really don't have any idea what the password was, I can't really start a tokens file or password file.  running this on my laptop, or even PC isn't realistic.....


Do you take less than 20% to try?  I'm basically looking at WalletRecoveryService, as it's the only chance I have (not knowing my seed words either).

Sure, just sent you a DM
Post
Topic
Board Electrum
Re: wallet password invalid after upgrade
by
flatfly
on 14/08/2025, 12:04:28 UTC
Attempting to bruteforce the password (using a strong GPU setup) is probably the only solution, but I wouldn't bet the farm on it.
Over the years I managed to help other users recover electrum passwords using my own rig - of course, this is only feasible if the password isn't too strong.
Post
Topic
Board Bitcoin Technical Support
Re: YaY! I just found 1.btc in my old wallet.dat file now how do I get it out?
by
flatfly
on 30/07/2025, 21:31:13 UTC
So anyone able to help me figure this out its on an old legacy wallet from a wallet.dat file of mine and I did encrypt it but can most likely hash the password I put I have a good idea on what it may be but if you know how I can bypass this I will give whoever 10k reward its been so long since i messed with this stuff an I was way smater back then.

https://www.blockchain.com/explorer/addresses/btc/1ApiCgLSysQFeF7V2MFTEHiRsep7AR8Pyx right here is the wallet I got from a dump on receiving addresses on the .dat file for proof

Do you remember anything about the password that was used? Length, special symbols, randomly generated or not, etc.
I successfully recovered an old wallet of mine using hashcat, but it does have a bit of a learning curve and needs a good GPU setup.
Post
Topic
Board Bitcoin Discussion
Re: I found $600 in an CB account I forgot: How to find old accounts?
by
flatfly
on 22/03/2025, 10:58:27 UTC
Could it be one of those? 


Bithumb (Founded in 2014) – One of the largest exchanges in South Korea, known for high trading volumes and supporting multiple cryptocurrencies.

Upbit (Launched in 2017) – Backed by Kakao, a major South Korean tech company, Upbit quickly became a dominant exchange in the country.

Coinone (Founded in 2014) – A well-known exchange in South Korea, particularly for its security measures and fiat-to-crypto trading options.

Korbit (Founded in 2013) – One of the earliest cryptocurrency exchanges in South Korea, offering KRW (Korean Won) trading pairs.

GOPAX (Launched in 2017) – A lesser-known but growing exchange that focused on security and compliance with local regulations

Hanbitco – A smaller exchange, but known for strong security and compliance.

ProBit – Launched in 2018, it grew in popularity for listing many altcoins.
Post
Topic
Board Bitcoin Discussion
Re: Mempool Observer Topic
by
flatfly
on 01/12/2024, 22:05:34 UTC
Post
Topic
Board Bitcoin Technical Support
Re: 4 Bitcoin sent to an unknown address?
by
flatfly
on 22/11/2024, 17:06:28 UTC
Yes that's good news!
Post
Topic
Board Bitcoin Technical Support
Re: 4 Bitcoin sent to an unknown address?
by
flatfly
on 22/11/2024, 16:43:25 UTC
They are saying that sending this dust transaction will resolve the problem caused by the "gap limit" (they are saying there has been a gap on the receiving address that I have), which may have affected my ability to see my funds. Once the transaction is confirmed, it will trigger an update in my wallet, rectifying the issue.

This is the official Blockchain support, and I reached out to two separate reps from two separate emails and received the same instructions.

If this is a gap limit issue, on Bluewallet, you could try the following and see if the missing address shows up:

My Wallet -> ... -> Show Addresses -> [Change]

 
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Topic
Board Bitcoin Discussion
Topic OP
Justin Bons' prediction on long-term security of BTC
by
flatfly
on 09/07/2024, 07:02:39 UTC
Just wondering, does this make any sense?

https://twitter.com/Justin_Bons/status/1810357305390616839

Quote

1/38) BTC's security model is broken

It has to double in price every 4 years for a century or sustain extremely high fees!

Just to maintain the present level of security...

Which is impossible, as it would exceed global GDP within decades

Therefore, BTC security is doomed!


2/38) Each halvening exponentially lowers the security budget; until it is gone!

These halvenings continue after exceeding global GDP for atleast 70 years before running out completely

If you understand exponentials & economics, you should know that this is entirely impossible!


3/38) Fees will also never reach sustained extremes due to the ratcheting effect of the fee market

Paying hundreds of dollars for a single TX is not realistic in a competitive free market

When fees spike, users leave, all due to the unnecessary addition of the block size limit!


4/38) This all means that BTC's long-term security is unsustainable without extremely high TX fees in the future!

The security of BTC will inevitably continue to decrease until it becomes profitable to attack

I predict this will happen in 4-12 years from now! (1-3 halvenings)


5/38) Hashrate does not equal security; bitcoiners like @saylor do not understand PoW

This chart of miner revenue proves that BTC's security is actually lower now than it was 3 years ago!