Importante: Antes de continuar con este tutorial, asegúrese de haber leído y comprendido este Manual de Buenas Prácticas de Seguridad de Bitcoin y Criptomonedas.
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Sending funds from your Material Bitcoin badge to another address is a process that you can do at any time from your mobile or PC and will take no more than 5 minutes. Here is a step-by-step tutorial on how to send your bitcoins to another address and change them, for example, to euros. In this tutorial you will learn:
The simplest way:
Detailed tutorials:
Step 1: Download Exodus
You can download the app to your Android or iOS device from the PlayStore or AppStore.
Step 2: From Material to Exodus
Once you have downloaded the App, it’s time to bring the content of your Material Bitcoin badge to Exodus. Here are the steps you will need to follow:
Step 3: Enter the private key of your Material wallet
By clicking on “Add Bitcoin from Private Keys” you will paste the private key of your Bitcoin Material, copying it from a notepad.
Note: Make sure your device cannot leak the private key. Otherwise, you will have exposed the key and rendered your Material badge unusable for future use. (For example, if your device automatically syncs the contents of that notepad you typed the private key into to the cloud, you are exposing it and destroying the security of your funds).
Note: Remember that the digits before the colon (p2wpkh:) should not be copied, as they are not needed in the Exodus application.
Technical note: Despite what the Import button seems to indicate, Exodus does not perform an import, but what is known as a key sweep. This means that you do a complete transfer of the total funds on your badge to a new wallet created in Exodus. Your badge is empty and you now have all the funds in the Exodus application. Make sure you take the necessary steps to ensure you do not lose control of the funds that now reside on your mobile device.
Step 4: Send bitcoin to the address of your choice
You can now send bitcoin to any bitcoin address in the world.
If you want to send bitcoin to an exchange to exchange them into euros or another currency, you will need to enter the shipping address provided by the exchange in the “Send” section:
Next, you will need to select the amount of bitcoin you wish to send. If you want to send all your funds click on “All”.
Finally, you will need to enter the address to which you want to send the funds.
Remember: Bitcoin transactions can take several minutes or even hours, so be patient and review the transaction until you receive several confirmations.
Send bitcoin from Android
Note: Make sure your device cannot leak the private key. Otherwise, you will have exposed the key and rendered your Material badge unusable for future use. (For example, if your device automatically syncs the contents of that notepad you typed the private key into to the cloud, you are exposing it and destroying the security of your funds).
Step 1: Download Electrum
Go to your Play Store, search for the application “Electrum Bitcoin Wallet” and click download.
Step 2: Create a wallet
Once downloaded, open the app and proceed to create a new wallet. Click on “Next” in the bottom right corner of your screen.
Step 3: Import your private key
You will replicate your Material Bitcoin wallet in the Electrum software in order to transfer your funds.
To do this you will need to click on “Import Bitcoin addresses or private keys“.
Step 4: Copy and paste your key
This step is very important, so make sure you get it right. As you will have to enter your private key in Electrum, we recommend that you do it in the following way:
- Exit Electrum without closing the application.
- Peel off the protective vinyl from the private key on the back of your badge and write down all the digits on a notepad on your mobile phone.
- When finished, select everything and click copy.
- And finally, go back to Electrum, paste the key by clicking on “Paste” and then click on “Next” to confirm.
Very important: Make sure you do not save this file and delete the password as soon as you finish the remittance process.
Note: Make sure your device cannot leak the private key. Otherwise, you will have exposed the key, you will be risking your funds right now, and you will have rendered your Material board unusable for future use.
Step 5: Choose a strong password
We will encrypt the wallet with a password of your choice. Make sure you choose a strong password.
Step 6: Go to the shipping section
Now that you have your bitcoin in your Electrum wallet, we will proceed to send them to another bitcoin address of your choice. The amount of bitcoin in your Material Bitcoin badge should now appear on the screen. In this case, to send your funds to another address go to the “Send” section at the top left of the screen, and click on the “Recipient” section.
Step 7: Select shipping address
Once you are in the shipping section, the first thing you must select is the destination address (Recipient). If you want to convert your bitcoin to euros, you must send your bitcoin to the address of your trusted exchange. To copy the address of your exchange, we recommend you to paste it from notepad, as we did before. Once you have copied and pasted it, click on the paste symbol to insert the desired address.
Step 8: Choose the amount you want to send
The next step before sending funds is to choose how much bitcoin you want to send. If you want to send all your funds to the exchange click on “Max“. Confirm by clicking on “Pay“.
Please note: The amount of bitcoins can be displayed in different units, in this case it is in Satoshis. You can change this in the App settings.
Step 9: Confirm sending of funds
The Electrum application itself has a small security system that pops up when you press the “OK” button. At that moment it asks you if you want to send the order in case you have entered any information incorrectly. You will have to confirm the shipment and the commission to be paid. Click on “OK” to send the funds. Please note that the fees to be paid for the transfer are constantly changing.
Step 10: Check your history
At this point you have already sent your bitcoin to the address of your exchange and they are travelling through the blockchain waiting to be verified. You can check the status of your transaction in the history section of the app.
Please note: Sending funds may take several minutes, depending on the network costs at the time and the amount you have paid when sending.
Step 11: Remove wallet from your mobile device
By importing the private key of your Material badge into your mobile device, you have created a software clone of your badge on your mobile device.
You can now remove the wallet software, as it still exists in its original metal version. In fact, it is recommended that you remove the wallet software, as computers and mobile phones are highly insecure and riddled with vulnerabilities.
If you feel that you have completed the process without compromising your private key at any time and in any way, you will be able to reuse your Material Bitcoin badge to receive funds again and store them securely. If you are not 100% sure that the private key could not have been leaked in some way, it is safest to purchase a new Material wallet to store your bitcoin.
Sending bitcoin from PC
Step 1: Download Electrum from the official website
Go to electrum.org and click on “Download”.
Step 2: Choose your operating system to download the programme to your PC.
In the case of Windows, for example, click on “Windows Installer“.
Note: Make sure that the PC you are using is fully secure, up-to-date and absolutely clean, as exposing your private key may result in the total or partial loss of your funds.
Step 3: Create a new Electrum wallet
Once you have successfully installed the programme, you will need to configure Electrum for the first time. Click “Next” in the first and second window on the bottom right. This will create a wallet in Electrum where you will import the private key of your Bitcoin Material to be able to send.
Step 4: Choose the option “Import Bitcoin address or private keys”.
At this point you will need to enter the private key of your Bitcoin Material, which can be found underneath the security sticker. Remember to enter the prefix p2wpkh: and make sure it is entered correctly.
In the next step you will need to create a password to encrypt the data in your Material Bitcoin wallet. Make sure it is a strong password and remember it, as you will need it later to send Bitcoin.
If you have followed the steps correctly, you will already have your Material Bitcoin imported into Electrum on your computer, where you will be able to check your Bitcoin Material balance, make shipments, and accept Bitcoin payments.
Step 5: Send bitcoin
To send bitcoin, click on the “Send” tab and enter the destination address and amount.
Click on “Pay” to see the details of the transaction. A new window will open, giving us the option to adjust the fee (the faster, the more expensive, and the slower, the cheaper). Click “Accept” to launch the transaction on the blockchain.
Enter the password you have previously set and click “OK“.
We will receive a notification that everything has gone well, along with the hash ID (identifier) of the transaction.
Step 6: Check transaction status
To check the status of your submission, click on the “History” button. The confirmation process may take a few minutes depending on the number of transactions taking place on the Bitcoin network at the time, and the send priority you selected in the previous step.
We can also check the status of the transaction on other sites using the hash ID that appears in the history, or in the notification from the previous step. For example, we can enter it into the blockchain.com search engine (don’t worry, this hash ID will not put your funds at risk):
In this case we can see the details of the transaction: its status, the amount, the network commission, the sender, the receiver, and some more technical data. As we sent the transaction recently, it is not yet completed (it is shown as “Pending”) and we will have to wait a few minutes until it appears as follows:
And with that, the remittance of funds would be completed.
Step 7: Remove Electrum wallet from your computer
For security reasons, it is recommended that you delete the Electrum wallet.
By importing the private key of your Material board on your computer, you have created a software clone of your board on your computer.
You can now remove the wallet software, as it still exists in its original metal version. In fact, it is recommended that you remove the wallet software, as computers are often riddled with vulnerabilities and are highly insecure.
To do this, go to “File” at the top of the menu and select the “Delete” option. You will be asked for the password with which you have encrypted the wallet in order to delete it from the programme permanently.
If you feel that you have completed the process without compromising your private key at any time and in any way, you will be able to reuse your Material Bitcoin badge in the future to receive funds again and store them securely. If you are not 100% sure that the private key could not have been leaked somehow, the safest option is to purchase a completely new Material wallet to store your bitcoin securely.
What if I need to make a partial removal of my Material wallet?
Bitcoin transfers do not involve partial withdrawals. The entire amount of funds in a wallet is always sent abroad.
What can be done is to send the entire contents of a wallet to several destination wallets, each receiving a share (which need not be equal amounts).
Most software wallet operators achieve the (fictitious) appearance that a partial transfer has taken place. They achieve this by using the technique explained above: They send the total in two parts; one part is sent to the destination and the remainder is sent back to another wallet that is also controlled by the sender.
How to withdraw only a portion of the funds from your Material Bitcoin plate
If you have swept the private key of your Material badge from a software wallet (e.g. to Exodus), you have created a new wallet in the software (several actually) and now all your funds are already out of the badge. From this software you manually send the amount of funds you want back to your Material wallet.
If you have imported the private key of your Material badge (e.g. in Electrum), you have created a software clone of your badge on your computer or mobile phone. From this software you manually send the desired amount of funds to the outside. The software will then return the surplus back to your Material wallet.
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