Because those private keys are not covered by a backup of the wallet's seed. So you can sweep private keys but not import them.

Electrum doesn't support lightning on old wallets with p2pkh addresses (beginning with 1). It only supports lightning on wallets with p2wpkh addresses that begin with bc1. So an upgrade wizard will not help.

Also the label sync plugin uses your master public key to find labels relevant to your wallet. A different seed will lead to a different master public key so you can't use the label sync plugin to get the labels of your old addresses in a new wallet.

Electrum does not support importing private keys in a deterministic wallet (a wallet with a seed) so you can't import the old addresses anyway. You can only sweep them.

Electrum only supports one address type per wallet so that's why it's not seeing the legacy address. You will have to convert your master private key to p2pkh format (xprv) and restore your wallet using that to see the legacy address.

Go to view menu > check console and switch to console tab. Click on the yellow warning box to make it go away. Then type in this


You may be prompted for your wallet password. It'll output the master private key in p2pkh format beginning with xprv. Copy that to the clipboard and go to file menu > new/restore, enter a suitable filename and click next, choose "standard wallet" and click next, choose "use a master key" > paste in the xprv you copied before (don't include the single quotes) and proceed with on-screen instructions for the rest.

Quantum computers will make the current generation of bitcoin addresses obsolete within the next 5-10 years. So the funds you are trying to give your child will be stolen before they can ever be spent.

You have to specify the address script type when importing private keys in electrum. So if the address begins with bc1 you have to enter "p2wpkh:" followed by the WIF. If it begins with 3 then try prepending "p2wpkh-p2sh:" before the private key.  If you still don't understand click on the "info" button on the private key entry step to see examples.

Local means the electrum server you are connected to has no knowledge of this transaction. Other servers might have heard of this transaction though so it might still be out there. But for now you can  go ahead and right click on it and delete it. That should cause your balance to update.

You have to trust play store.

Just to confirm you are seeing a green orb in the bottom right of the electrum window? What version of electrum are you using?

There is malware that can change addresses copied to the clipboard with the malware author's . Try copying another address using electrum and then paste in a text editor. Does it match the address you see in electrum?

You don't need to enlarge the gap limit or generate new addresses on the cold wallet. The unsigned transaction from the online watch only wallet contains details about which private keys the cold wallet should generate to sign the transaction so that's how the cold wallet knows. You don't have to do anything.

This has nothing to do with electrum servers. It's an issue with the SSL certificate that bitpay is sending to electrum. According to electrum you don't trust the certificate authority that issued that cert. I don't know how you would go about fixing it in windows 11.

OP posted on reddit too:

https://www.reddit.com/r/Electrum/comments/1m01puy/help_please_lightning_channel_close_transaction/

The error in the second image is non-bip68 final.

Electrum can sign with legacy addresses and those signatures can be verified by other wallet software because there's a standard behind it. But when it comes to non-legacy addresses there is no standard signature format so electrum generated signatures can't be verified by other wallet software.

If you want to send the entire amount in the paper wallet to relai you can simply sweep the coins to your address in relai. So in the sweep window you put in your address in relai instead of an address in your electrum wallet.

Local transactions are transactions that are recorded  in the electrum wallet file but not known to the electrum server you are connected to. Electrum depends on electrum servers to interact with the blockchain including finding transactions relevant to your wallet. Because these transactions are for bitcoin cash and not bitcoin so the electrum server you are connected to does not know about them since it's a bitcoin electrum server. You can simply right click on the transactions and choose to remove them from your wallet file. The balance will then update.

You can enter your friend's address in the sweep window and all the funds in the paper wallet will be sent to that address. You don't need to add any prefix to the address. Prefixes are only added to private keys but you don't need to do that either.

Does your friend have an entry for trusted coin in their google authenticator app on their phone?

By different wallet do you mean other wallet software? Electrum seeds don't work with other wallet software. Try restoring from seed again in electrum by going to file menu > new/restore, enter a unique filename and click ok. Then proceed with on-screen instructions for the rest of it.

You will definitely get a seed with bip39 words only because that's been the default behaviour of electrum since version 2.0. However it won't be a bip39 seed and you won't be able to restore it in other bip39 wallets. Wallet software has to support electrum seeds for you to be able to restore in it. Blue wallet is one such program that supports it.

It's dangerous to use your wallet on other people's devices. You don't know what sort of malware those devices might have.