Is your goal to be able to simultaneously use the same wallet in Electrum and Trustwallet?
If so, you can do pooya's suggestion to do the "reverse".
If it's just to restore your Electrum wallet to Trustwallet, then sending the funds normally is the best option.

Anyway, the post that you replied to already has the answer to your question, language barrier perhaps?
Try the local boards: https://bitcointalk.org/index.php#5

The good thing is, Bitcoin Core nodes are configured to listen by default.
But usually, it's the user's network, ISP or system that's hindering inbound connections.

Electrum can create more than one wallet and open separate instances of each; Also, during the install wizard, it will ask you to create your first wallet.
You might have created a legacy wallet before you created the SegWit wallet, then mistakenly used the legacy wallet to receive the funds from Coinbase.

Unfortunately, with the address alone, it's impossible to tell where wallet it belongs to.

At least the output is still unspent so we can rule-out any case of "clipboard hijacking malware".

You can open bitcoin core if you set prune=550 (value depending on the previous setting) in your bitcoin.conf file because your current blockchain is pruned.
But that's not what you need to do to solve the main issue, it's to reindex.

If --reindex isn't convenient for you, you can just delete or rename the "blocks" and "chainstate" folders from your bitcoin data directory.
That will reset your blockchain and Bitcoin Core will redo the initial block download.

First, you need to open a channel.
It's only available for SegWit Electrum wallet (addresses start with bc1 and not a '2fa wallet'), if your wallet is of any other type, you can't.

Secondly, you need inbound capacity to be able to receive funds through lightning.
You can gain inbound capacity by sending some of your funds or by using the "swap" feature in the channels tab (it uses the same backend as the one suggested above).
The latter comes with a fee and it'll send some of your lightning funds to your on-chain funds.
You can check how much you can receive in the 'channels' tab: "can receive X. BTC".

Lastly, if the requirements above were already satisfied, use the 'Lightning' button in the receive tab instead of 'New Address'.

Yeah, I've noted in my previous reply that you're the one who spent it (in your successful attempt).

So the cold machine is set to prune the blockchain in the first place.
Then since you set the hot machine to prune too, both machine work since nothing's different in the settings and contents of the datadir.

The downside is you'll never be able to load other wallet, otherwise you'll have to re-download the blockchain.

Ah, so it's you who spent it and it's successful in your last attempt.
Congrats.

You found the reason why it needed to re-download the blockchain.
Forgot to mention that prune setting is on by default and you said that you are in default settings, so if you haven't unchecked it in the welcome screen/settings, it must be on.
That setting will delete the older blocks until the set size has reached to save disk space.

The coin that you're trying to spend was already spent (just a few minutes ago): f6191eb2d49ae95ad4ca329aa928bc6eec625e95a668ff01b5e138cd6c460e54:0

If the file above doesn't work, get the 32-bit Windows binaries from the outdated armory website bitcoinarmory.com (but from its older version)

Link: https://web.archive.org/web/20130917140922/http://bitcoinarmory.com/download/ (click Windows icon, then "code.google.com download page").
It will redirect you to this archived page: https://web.archive.org/web/20130814045236/http://code.google.com/p/bitcoinarmory/downloads/list
The download links there are still working but it's archived by a third-party so I can't comment on the integrity of the files.

The simpler method is to just move the decimal point depending on the value of "e+number".

From your example:

	1.055	(e+06 = move by 6 decimal places)
	10.55	=  move by 1 place
	105.5	=  move by 2 places
	1055.	=  move by 3 places
	10550.	=  move by 4 places
	105500.	=  move by 5 places
	1055000.	=  move by 6 places

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Other note: You can use your forum signature for off-topic messages.
You can access it in: "Profile->Forum Profile Information".

So the custom data directory was set in the GUI's "welcome screen" and no other settings are set.
Removing the wallet file shouldn't cause your node to re-download the blockchain,
so I think something is corrupted in the process of unplugging/transferring/plugging of the external SSD.

IDK what Cold-storage setup you are using that requires the blockchain in the cold-wallet,
but I'd also recommend you to just use the "cold machine" for signing purposes only, it doesn't need to sync to the network.

Since they are the one who'll co-sign the transaction for you, they should have a "master private key" in their server that's a pair of the "master public key" in your 2fa wallet.
It's unique to each TrustedCoin account (you register as you create the 2fa wallet).

trustedcoin.py: https://github.com/spesmilo/electrum/blob/master/electrum/plugins/trustedcoin/trustedcoin.py#L72-L77

It shouldn't do that if the datadir has the same path and files as before.
Have you properly closed Bitcoin Core in the Cold machine before unplugging the USB Disk? Because it should be.

Some questions:

• Are you using a bitcoin.conf file? If so, What did you set?
• Are you using any additional start parameters?
• If you're using Bitcoin-qt (GUI), what are the options that are ticked in the Settings?

If you do that, remove "settings.json" file as well so you wont get the "wallet path doesn't exist" error.

So you'll trust anything that they'll ask you, even your private keys?

Since you haven't explained the situation, most people will just assist you on the exact thing that you're asking even though it's not the best way to solve the issue.
Because with the current info, I see the whole "sign a transaction to get your money back" situation "weird" (as I explained in my previous reply).

It' would be nice if you can write the steps that you've done in order to import the funds to Electrum. (for others who are searching the web and to sum-up this thread)
Because a watching-only wallet doesn't have any keys that can be exported to another wallet.

BTW, the screenshot link doesn't work, you need to get the link from the image itself and not your imgur profile link.

You can use coinb.in's multisig tool to re-create the MultiSig address: coinb.in/#newMultiSig
Use "New->Transaction" to create a transaction using the redeem script; then the "Sign" tab to sign the RAW Transaction.
However, it only supports P2SH and not P2WSH (SegWit).

I'd recommend to use it offline during the part when you need to paste the private keys (e.g. when signing the transaction).
Run from the source: https://github.com/OutCast3k/coinbin/

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But something tells me that you have the "master private keys" (Yprv / Zprv) instead of "private keys".
In which case, you'll have to get the address' private keys from the master keys first to be able to sign it (will add a few extra steps).
If not disregard this part.

Mine shows the full address after I pasted it; and just like larry, just the first and last 4 characters in the confirmation window.
Metamask version 10.10.1 | Monitor's resolution: 1920x1080 px
Images (test network):

	Send Window		Confirmation Window

Anyways, I think it's time to create another thread to continue the discussion about MetaMask.

Or they can use -blocksdir as a start parameter or in the config file (for those who can't/wont use symlink).
That will basically do the same, Bitcoin will use the default data directory for the chainstate and other data except the blockchain which will be saved in the specified blocks directory.

https://github.com/bitcoin/bitcoin/blob/master/src/init.cpp#L401

Ah, so they aren't looking for a signed message to confirm that you're the sender like the SOP for refunds (OP sounds like that).
The OP is vague, but the new reply has some inconsistencies because why would they need you to sign a transaction for them to return your money back?

The question is: who's "they"?
And please describe your goal/issue better since this turned out to be an "XY problem".

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Anyways, you don't have to export any private key to sign a transaction.
Just load the unsigned transaction as described by pooya "Tools->Load transaction":
Click "Tools", point at "Load Transaction"; then select "From file" or "From text" depending on the format of the transaction that you need to sign.

Those versions are too old and wont be able to connect to the network.
If you need the binaries, try this: /index.php?topic=68121.0 (v0.1) | Read the latest replies for more info.
Or from the old commits: github.com/bitcoin/bitcoin/commits/master?before=25.... (before September 2011; click "<>" to view the repo's state at that time)

Reference for the Berkeley Database version upgrade: https://bitcoin.stackexchange.com/a/81583