Thanks a lot for the clear explanation! That makes sense now.

Hi everyone,
I’m using an Electrum cold wallet to sign a Bitcoin transaction. After signing, I let Electrum generate a QR code of the fully signed (but not yet broadcast) transaction.

When I try to scan this QR code with my BlueWallet watch-only wallet to broadcast, I get this error:

Format Error: Invalid Magic Number

The QR is supposed to be the signed transaction, but BlueWallet doesn’t recognize it.

My questions are:

Why is BlueWallet unable to parse the QR code exported from Electrum?

Is it because Electrum exports raw hex while BlueWallet only expects PSBT format?

What’s the recommended way to broadcast — should I import via text or file instead of QR?

Any help or insights would be much appreciated!

I sign my Bitcoin transaction on an Electrum cold wallet, then import it into BlueWallet to broadcast.
Quick question: when BlueWallet broadcasts the transaction, what kind of network is it actually using?

Hi everyone, I have a question about Electrum wallet:

I want to install Electrum on an iOS device (iPhone/iPad), but I couldn’t find any official version on the App Store. Could you please clarify:

1. Does Electrum have an official iOS release? 
2. If not, what alternatives do you usually use on iOS ? 
3. For a cold wallet + watch-only setup, is there a reliable way to achieve this on iOS?

Thanks in advance for your help!

Does the calculation of this transaction fee follow any consistent pattern or general rule? Could you perhaps illustrate it with a concrete example?

Hi everyone, I’m encountering an issue while using the Electrum wallet (version 4.6.1) for a small BTC transfer.

I tried to send 0.00002122 BTC, but the wallet shows that I need to pay about 55.18% as the transaction fee. I have a few specific questions:

Is this 55.18% fee calculated as a percentage of the transaction amount I’m sending, or as a percentage of my total wallet balance?

If I were to send a larger amount, say 2 BTC, would I still need to pay a 55.18% fee? That would mean almost 1 BTC in fees, which doesn’t seem reasonable.

How exactly does Electrum determine the transaction fee? My understanding is that fees are based on transaction size (in bytes) and the sat/vByte rate, but why does the percentage become so high for small-value transactions?

I’d really appreciate any clarification or advice from the community on this issue, especially on how to avoid paying disproportionately high fees for small BTC transfers. Thanks!

Thank you very much, I have succeeded according to your method!

Hello everyone,

I recently ran into an issue while testing the Boxcoin plugin together with Electrum wallets, and I’d like to ask for some guidance.

I have two Electrum wallets:

Wallet A: used for test payments, generates addresses starting with bc1 (Native SegWit).

Wallet B: used for receiving funds, normally also generates bc1 (Native SegWit) addresses.

When testing the Boxcoin plugin, I wanted to generate a new receiving address for each order.
Following the tutorial, I converted zpub/ypub → xpub and entered that into the plugin.

As a result, the plugin started generating new receiving addresses, but they were all Legacy addresses starting with 1....
I then sent BTC from Wallet A (bc1 sender) to one of these 1... addresses generated for Wallet B.

The transaction appears correctly on the blockchain explorer and is confirmed.
However, when I open Wallet B (which is a bc1-type wallet), the balance still shows 0 BTC and the transaction does not appear.

My questions

Why doesn’t Wallet B show the BTC that was sent to its Legacy (1...) address?

Is it because Wallet B was originally created as a Native SegWit wallet, so it doesn’t scan Legacy addresses?

If that’s the case, do I need to restore Wallet B again from the same seed, but this time choose Legacy (m/44'/0'/0'), in order to see the funds?

I’d really appreciate any help or explanation on how to correctly handle this situation.

Thanks in advance! 🙏