Topic: Problem with old wallet. Please help. (Read 141 times)

I hope that you have a backup of the unencrypted wallet.dat.
Because by encrypting it while it's not synchronized, the keys for addresses of the transactions that still not saved by the wallet will be flushed and be replaced by new ones.
That may be the reason why you're getting 0 balance in your new laptop.

Try to export the unencrypted wallet to the new laptop instead and let it rescan.

Problem is, that year-2015-transaction should've been already verified with your current block height, are you sure that it's Bitcoin Core's wallet.dat file?
Because you can paste an Altcoin wallet.dat file to Bitcoin core and it will display the previous unverified transactions as Bitcoin until it sync.

In blockchain.com (that's not "the blockchain" BTW) if the address can't be found, it means that it's invalid, not a Bitcoin address;
if it shows 0 in and outs, it means that it's valid but didn't received any transaction yet.

Read the Bitcoin Core section of this guide on how to find the location of Bitcoin Core / QT's wallet folder, and then copy the wallet.dat somewhere else or onto another device with a newer version of Core running. Then you can use your password (you do have this, right?) to unlock the wallet and use it normally.

Go to a block explorer, like https://blockchair.com/ or https://mempool.space/, enter the address there and see if there are indeed funds on that address.
If that's the only address with funds and they're there, the things could go easier.


The wallet.dat file size is not necessarily a proper indicator. And if you have more than one wallet.dat on the device you no longer can be 100% sure which is the good one. It's not uncommon to only think you backed up the correct wallet.dat. However, updating core should not overwrite wallet.dat


I'd start with trying to see if there are indeed funds on the expected address. Because if so, you'll be able to access the funds without waiting for the entire blockchain (by using a SPV wallet).

Sorry, just moved the topic where it belongs.
Tried listunspent, it just shows the same address as the incoming transaction which is shown as non existant.
What do you mean by corect wallet.dat with balance ?There is only one wallet on the tablet, no acount name just current wallet. I only made back up of the wallet, And it gave me only 1 wallet.dat file, same size as the original wallet file on the tablet.
So full sync on the laptop then rescan ?
in the debug file the app tries to connect on port 5333. All conections are timedout...
Should i download TOR and run it trough socks5. Or is there an easy way to configure it to run on 8333 port ?

First of all, this kind of questions belong to Bitcoin Technical Support. Try to move the topic there (bottom-left, move topic), you have better chance to get better answers there.


Keep in mind that the full blockchain is around 400 GB and with normal settings that's to be also saved.
If the sync stopped because of the lack of space, you may try to run it in pruned mode, although I would go for this only as last resort (you still have to download the full blockchain and if a resync is needed it means one more full download, not just resync from disk).


If you want to check the files should be, by default in the paths written here: https://en.bitcoin.it/wiki/Data_directory
The most important is to backup wallet.dat (just you have to make sure you backup the correct wallet.dat, the one with funds).


I don't know if listunspent is available, but imho it could be one possible direction to check for the address(es) with funds.

What? We are in 2021 mate what the hell are you doing? You don't have to sync bitcoin wallet to send your coins out, all you need is your backup file like private keys or recovery seed then import that into trust wallet or exodus wallet, the whole bitcoin blockchain is huuuge mate don't even go there

Hello bitcoin comunity in need help with an old wallet on a Toshiba tablet. Stuck at synchronisation ... I have some btc in it but i have this problem.
The tablet runs Bitcoin core v0.8.7.4-unk-beta on windows 8.1.
It has reach about 576412 block till about 51 weeks ago then it stopped synchronising.
I encripted the wallet , made a back up ant transfer it on a laptop with the new 0.21.1 version.
The transfered amount was sent in 2015 , but when i transfered the wallet.dat it reads 0 btc.
I reached 99.1 % of sync on my laptop but it went past that date and didn,t verify that transaction of the incomings btc. The balance stayed 0.
I tried searching the addresses manualy on the blockchain , and all results were , this address dont exist.
I noticed when i transfered the dat file all original transaction adresses changed completely. And everyone shows either non existant or 0 inputs or outputs.
I believe the wallet hide somehow the original addresses and i cant get the corect priv key.
I tried dumping the wallet and checking all addresses individualy still returns 0 in every one.
I cant use dumpwallet on the tablet because that command is not available in v0.8.7
How can i find the original btc address.
But since the tablet is of friend of mine ,he asked me for help.I cant start it synchronising. Im afraid to update it forcecfuly , because i've red you can loose the amount of the wallet. I believe the original version is not installed but copied over , i dont find the btc core in the remove programs tab on windows.
All help will be apreciated.
I can give adittional info if needed.