Found an Old Bitcoin Wallet? How to Check It and Cash Out Safely

Clearing out a drawer, you find an old phone. Or a notebook with twelve words written in a corner. Or you remember that, back in 2017, a friend helped you buy "some Bitcoin" on an app you've long forgotten.

Bitcoin is worth many times what it was back then, so it's worth checking. But this is also exactly the moment scammers wait for. Go slowly, and in this order.

Step 1: Work out what you've found

What you have	What it means
An old exchange or app login	The Bitcoin is held by that company. Contact its official support.
A wallet app on an old phone	The Bitcoin may be in that app, protected by its PIN or a backup phrase.
A seed phrase (12 or 24 words)	The master key to a wallet. Whoever has it controls the coins.
A paper wallet	A printed address and private key, sometimes as QR codes.
A wallet file (such as wallet.dat)	An older desktop wallet's key file, often with a password.

Step 2: Check the balance without risking anything

If you can find a Bitcoin address (a public address, often starting with 1, 3 or bc1), paste it into a Bitcoin explorer such as mempool.space. You'll see the balance and history. This is completely safe: an address is public, and checking it doesn't reveal any secret.

Never type a seed phrase or private key into a website to "check a balance". That's the quickest way to lose everything.

Step 3: Restore access, safely

Exchange accounts: use the official website's account recovery, and expect identity checks.

Old phone apps: charge the phone and try the app first. If it asks for a PIN you've forgotten, look for the backup phrase.

Seed phrases: install a reputable, well-known wallet from the official app store, on a phone or computer you trust, and choose "restore" or "import". Our explainer on seed phrases covers how they work. Very old wallets sometimes used different formats; if the restore shows an empty wallet but you know there's Bitcoin, the format may differ, so research the original wallet before trying anything else.

Paper wallets and wallet files: these need more care. Use reputable, well-documented wallet software, and avoid tools from unknown websites.

Step 4: Move it to a wallet you control today

Once you can see the coins, move them to a fresh wallet you control (or straight to your KWIQ Bitcoin address if you plan to sell). Old backups may have been seen by other people over the years; moving the coins ends that risk.

Step 5: Check for forked coins

If your Bitcoin was in a wallet you controlled before August 2017, the same keys may also hold Bitcoin Cash, which split from Bitcoin then. Move your Bitcoin to safety first, then check. KWIQ supports Bitcoin Cash too. Our explainer on Litecoin, Dogecoin and Bitcoin Cash has the background, and profiting from forks and airdrops covers the idea in general.

Watch out for "recovery experts"

The moment you post "found an old wallet, can't access it" anywhere online, strangers will offer to help. Nearly all of them want your seed phrase, your wallet file or an upfront fee. Read crypto recovery scams before you reply to anyone.

Step 6: Sell what you want to sell

Decide how much to sell and how much to keep. Our post on taking profit on Bitcoin in naira can help you plan. Then:

1. Copy your Bitcoin deposit address from the KWIQ app.
2. Send from the wallet you restored, on the regular Bitcoin network.
3. Once credited, check the rate and naira amount and confirm. Swapping to naira is free, and you can withdraw to any Nigerian bank.

Keep a note of what you found, when, and what you sold for your records. Check today's Bitcoin to naira rate, then download the KWIQ app or sign up on the web.