Electrum delete unconfirmed transaction
In the GUI, type each address and amount on a line, separated by a comma. This might happen if you are trying to spend a large number of transaction outputs for example, if you have collected hundreds of donations from a Bitcoin faucet. When you send Bitcoins, Electrum looks for unspent coins that are in your wallet in order to create a new transaction.
Unspent coins can have different values, much like physical coins and bills. If this happens, you should consolidate your transaction inputs by sending smaller amounts of bitcoins to one of your wallet addresses; this would be the equivalent of exchanging a stack of nickels for a dollar bill. The gap limit is the maximum number of consecutive unused addresses in your deterministic sequence of addresses.
Electrum uses it in order to stop looking for addresses. Electrum will generate new addresses as you use them, until it hits the gap limit. If you need to pre-generate more addresses, you can do so by typing wallet. This command will generate one new address. Note that the address will be shown with a red background in the address tab to indicate that it is beyond the gap limit.
The red color will remain until the gap is filled. Addresses beyond the gap limit will not automatically be recovered from the seed. For example, if you wanted to generate 50 addresses, you could do this:. To upgrade Electrum, just install the most recent version. The way to do this will depend on your OS. Note that your wallet files are stored separately from the software, so you can safely remove the old version of the software if your OS does not do it for you.
For this reason, it is not recommended to downgrade Electrum to an older version once you have opened your wallet file with the new version. The older version will not always be able to read the new wallet file.
Frequently Asked Questions How does Electrum work? Does Electrum trust servers? What is the seed? How secure is the seed? I have forgotten my password. What can I do? My transaction has been unconfirmed for a long time. How is the wallet encrypted? Does Electrum support cold wallets? Can I import private keys from other Bitcoin clients? Can I sweep private keys from other Bitcoin clients?
Where is my wallet file located? Can I do bulk payments with Electrum? Can Electrum create and sign raw transactions? Electrum freezes when I try to send bitcoins. What is the gap limit? How can I pre-generate new addresses? How do I upgrade Electrum? If you have made a transaction that is unconfirmed, you can: Wait for a long time. Eventually, your transaction will either be confirmed or cancelled. This might take several days.
Increase the transaction fee. A window will popup with the unsigned transaction. A CPFP is a new transaction that pays a high fee in order to compensate for the small fee of its parent transaction.
Because the size of each mined block is fixed to 1MB, the amount of transactions per block is limited. There is a lot of debate whether this should be changed. The consequence in the current system is that not all submitted transactions can be processed quickly.
The time until a transaction is confirmed can therefore become rather long. Fortunately, the bitcoin network is based on market principles. The invisible hand takes care of this issue: By adding higher processing fees to your transaction you can make sure that it receives higher priority. It is even possible that it will never get confirmed. Recently, I experienced this case myself. My transaction was stuck for more than 24 hours because my wallet software, Electrum, was outdated.
It proposed a way too low fee for the transaction and since I never had to change the default in the past, I just submitted it. After a few hours, I lost my hope that the issue will resolve itself. So I started reading up on solutions and came along quite a few:. For me, only the last method was practicable and this will often be the case.
I found some pretty decent descriptions of the method here and here. However, applying the method in the practice with Electrum was somewhat tricky. Therefore, I offer a more detailed step by step how-to here.
The basic idea is to create a new transaction which uses part of your unconfirmed transaction as an input. This transaction should have an elevated fee. For miners to confirm it they will also have to include the previous, unconfirmed transaction into the block. If the fee of the second transaction is high enough to compensate for both transactions, miners will willingly do this.
Just spend some of the received coins or send to yourself with an extra juicy fee. This is because most of the time some amount of the transaction gets back to you as "change".