Electrum 4.03 not used for awhile constantly synchronizing

[nc50lc]

electrum 3.3.8 but works perfectly

Is the only way to create a new wallet and transfer everything there?

Are you looking for a way to send the funds or asking if it's the only solution?

Anyways, since 3.3.8 works but now you can't open the upgraded wallet file with that version:
you can restore the "seed phrase" on v3.3.8 and use that wallet to send the funds to a new wallet.
If you didn't backup the seed, you still can recover it from your offline 4.x wallet using the option "Wallet->Seed".
Make sure write it on paper as an offline backup if you didn't have one.

[bob123]

Yes there are hundreds of transactions, I think that’s what the wallet is for.

It could be the issue. There have been a number of users with wallets with either a large number of addresses, a large number of transactions, or both, who have experienced problems syncing or the wallet freezing up entirely. For example:

https://github.com/spesmilo/electrum/issues/2540
https://github.com/spesmilo/electrum/issues/4183
https://github.com/spesmilo/electrum/issues/5813

Those issues are from people with 5000+ addresses.
If OP "just" has hundreds of transactions, this shouldn't be the issue.

However, something seems to be wrong and it indeed might be worth to check the connection with a smaller wallet.

OP, is there a reason you aren't using the wallet file? Do you still have access to it?
If so, could you try loading your wallet / telling us the size of it?

[quadxxxxx]

seed and password of Electrum 3.3.8 are available, but I can not create a new wallet in Electrum 3.3.8 with the seed,
it will also stop here in ser synchronisation.
the old wallet file has about 300 MB
also loading the wallet file in 3.3.8 or 4.0.4 it stops at both versions while synchronizing.
I now had to create a new wallet under 4.0.4 and transferred everything from the working 3.3.8 to it. Pity I would have liked to keep the old wallet.

[BitMaxz]

seed and password of Electrum 3.3.8 are available, but I can not create a new wallet in Electrum 3.3.8 with the seed,
it will also stop here in ser synchronisation.
the old wallet file has about 300 MB
also loading the wallet file in 3.3.8 or 4.0.4 it stops at both versions while synchronizing.
I now had to create a new wallet under 4.0.4 and transferred everything from the working 3.3.8 to it. Pity I would have liked to keep the old wallet.

Such a big wallet and I think this is the reason why its stuck on syncing.

Can you try to export all of your private keys with funds?
Follow the method from this post below.
- https://bitcointalk.org/index.php?topic=1118697.msg11868713#msg11868713

After you collected all of your public/private keys with funds you can now create a new wallet and use the "sweep" function.
You can find it under wallet>private keys>sweep then paste all private keys that you get from your old wallet.


You can also use this below as alternative to collect all of your addresses with balances manually. It needs the master public(Extended public key) then paste it to any of these below.

- https://www.blockonomics.co/
or this one
- https://www.blockchain.com/btc/xpub/pasteyourxpubhere

Then collect all of the addresses with funds then export them(go back to the link above and use the export private keys command).

[hosseinimr93]

----------

According to the post made by quadxxxxx, seems that he has already moved the fund to a new wallet.
There was no need to export private keys and sweep them into a new wallet. Because the version 3.3.8 was working for him and he could easily send the fund to a new address without any need to those commands or a third party website.

[HCP]

... Because the version 3.3.8 was working for him...

No, it wasn't... that was kind of the problem.

seed and password of Electrum 3.3.8 are available, but I can not create a new wallet in Electrum 3.3.8 with the seed,
it will also stop here in ser synchronisation.
the old wallet file has about 300 MB
also loading the wallet file in 3.3.8 or 4.0.4 it stops at both versions while synchronizing.

A 300 Megabyte(!!?! ) wallet file means there are no doubt hundreds (if not thousands) of transactions and likely a similar number of wallet addresses that have been generated. It doesn't matter what version of Electrum you attempt to use for this, it is not going to end well. Electrum doesn't seem to handle that sort of scale very well... and the vast majority of Electrum servers will start throttling your connection due to the massive amounts of data your client will be trying to sync.

You could get away with it, if you ran your own "private" Electrum server and tweaked the bandwidth settings to prevent throttling, but that also involves running a full node.

[hosseinimr93]

... Because the version 3.3.8 was working for him...

No, it wasn't... that was kind of the problem.

From my understanding from previous posts made by quadxxxxx, he had a wallet created by 3.3.8 version. Electrum 3.3.8 was synced when he opened that wallet file.

-------electrum 3.3.8 but works perfectly---------

The problem was he couldn't have a synced wallet when he tried to create a new wallet using the seed phrase of the previous wallet. Neither in 3.3.8 version, nor in 4.0.4 version.

So my conclusion is:
If you have a wallet, make several transactions and make the wallet file size bigger and bigger gradually (even 300 MB), there is no problem and Electrum will be synced every time you open the wallet.
But if you import private keys or seed phrase of addresses that have a very large transaction history into a new wallet, electrum will have trouble to get synced.

[bob123]

No, it wasn't... that was kind of the problem.

From my understanding from previous posts made by quadxxxxx, he had a wallet created by 3.3.8 version. Electrum 3.3.8 was synced when he opened that wallet file.

That's also how i understood it, based on this:

I have a working Electrum version 3.3.8 and wanted to update to 4.0.4,

he just couldn't create a new wallet file using his seed on either version:

also loading the wallet file in 3.3.8 or 4.0.4 it stops at both versions while synchronizing.

Luckily he solved it now by moving the funds using the old (still functional) wallet file with the outdated version.


@quadxxxxx, if you plan on creating tons of private keys / addresses / transactions, you might want to consider using a full node.
Electrum is not suited for more than just "regular" usage.