You're on the right track, and yes, I can definitely help. Let's solve this step-by-step so you can access those funds.

Step-by-Step:

1. Check the Private Key Format:

- Uncompressed WIF: 5HueCGU8rMjxEXxiPuD5BDu... (starts with 5)
- Compressed WIF: Kx... or Lx...
If it starts with 5, it's uncompressed.

2. Two Methods to Recover Funds
You have two main options:

Method 1: Importing to Electrum (Manual Way)
Instead of sweeping, you can import the private key by creating a "watch-only" wallet and then converting it to a full wallet.
Here’s how:
1. Open Electrum.
2. Click "File" > "New/Restore" to create a new wallet.
3. Name the wallet.
4. Choose "Use a master key".
5. Instead of a seed phrase, paste your WIF private key (starting with 5).


Electrum will NOT sweep uncompressed keys but will accept them in wallet creation.
If Electrum says it’s invalid, your key might be:
- Corrupted (typos or extra whitespace)
- Encrypted (check the file carefully)

Method 2: Use a Site or Tool That Accepts Uncompressed Keys
Some tools can import uncompressed private keys directly:

Option A: BitAddress.org (Offline Mode)
1. Download the HTML file from bitaddress.org (open-source, verify via GitHub if unsure).
2. Run it offline (for security).
3. Click Wallet Details tab.
4. Paste your WIF Private Key.
5. It shows:
    - The public address
    - The compressed/uncompressed public keys
    - And lets you verify if there are coins.

Check if coins are on the uncompressed address, as this is what matters.
If yes, you can get the private key in the right format or send them elsewhere.

Method 3: Bitcoin Core (Slow but Sure)
You can install Bitcoin Core, let it fully sync (can take days), then:
1. Run the console (under Tools).
2. Run:
importprivkey "YourWIFKey"
3.
Then it’ll scan and let you use/send the coins once synced.
This takes time, but works with all valid WIF keys, including uncompressed ones.

Recommendations

- Use Electrum + direct import if it lets you.
- If that fails, use bitaddress.org (offline) to confirm balance.
- As a last resort, use Bitcoin Core.
Let me know:
* Your WIF key format (does it start with 5?)
* If you can share the public address (not the private key!), I can help check balance/status

Security Reminder
Never paste your WIF key on any online tool unless it’s offline and verified (e.g., bitaddress.org run from a disconnected device). If you want help analyzing it safely, we can use offline tools.

What is the btc reward?