My colleague and i had 3 bitcoins on an old wallet, we wanted to send them to a safer wallet last friday as soon as possible because his wallet was not up to date... so this is what happened:
- we tried 0,001 , and it worked, the transaction could be seen immediately on my other bitcoin wallet and got confirmed in 20 minutes.
- we tried -2.9775, my colleague accidentally didn't add a fee, he says it was not possible anymore to add a fee. the transaction was never seen on my wallet, it was seen on blockexplorer as unconfirmed
- 3 days later the transaction is not to be found anymore on blockexplorer, or our accounts.
- my colleague his wallet is not sync so cannot acces his wallet, he need to leave his computer on for 30 days, almost impossible on his old computer, he says he never made a private key
- please help
You're really not giving enouh data. What wallet are you using? What adresses were used, for the unconfirmed transactions?
Anyhow, bitcoins don't disappear, they have to go somewhere. If the transaction didn't confirm, and stopped being broadcast, it should have been returned to the original adress it was send from.
Also, every adress has a private key, so he does have a private key.
I'm assuming here that you guys were using bitcoin core, you'll need to EXPORT the private key which holds the 3 bitcoin, and import that into a wallet such as electrum.
To see which adress holds the bitcoins, try running
listaddressgroupings
walletpassphrase "your walletpassphrase here" 600
dumpprivkey [your Bitcoin address here]
This code is used to dump the private key.
Then simply download electrum from official sources and import the key. Voila, your balance should be there.
How to get into the console,
1. launch your bitcoin client as usual
2. click on 'help' in the menu bar (top right)
3. click on 'debug window'
4. select the 'console' tab