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M400 user manual

Learn how to set up, configure, and use the M400 payment terminal.

Get started

Get your new payment terminal up and running:

  1. Inspect the terminal.
  2. Open the cover on the back of the terminal, connect the dongle, and close the cover.
  3. Turn on the terminal by connecting the power supply. During startup the display turns on and off a few times.
  4. Select Configure network and connect the terminal to your network.
  5. Select Board the terminal, select your store, and select Confirm.*
  6. Test the connection with the Adyen platform.
  7. Test the connection with the cash register.

* If Board the terminal doesn't show, wait until the next synchronization with the Adyen platform (on average three hours) and try again.
When you have completed these steps, you are ready to process payments!


Keypad keys

Key Name
Cancel
Clear
Confirm

Supplied components

  • payment terminal
  • Region-specific power cord
  • Power supply
  • Dongle (Cube Ethernet)
  • Stylus pen
  • Privacy shield

Admin menu

You'll need the Admin menu on the terminal for various tasks. To open the Admin menu:

  1. Select 9 and then the Confirm key.
  2. Enter the Admin PIN code and select the Confirm key. Where do I find the Admin PIN?
Option Description
Network Configure network settings.
Run diagnostic connection tests.
Software Update the terminal software.
Config Update, view, or remove the configuration.
You can view the configuration version, the installed software release, and hardware details such as the unique terminal ID.
Transaction Get an overview of transactions stored on the terminal.
Reboot Restart the terminal.

Device info

To view information about the terminal:
  • Select 5 and then the Confirm key.
A screen similar to the one shown here appears, with:
  • Model, serial number, and IP address of the terminal.
  • Software version and configuration version that the terminal currently uses.
  • Merchant account and store that the terminal belongs to.
  • A button to show a QR code with device info.
    When you contact our POS Support Team, they may ask you to scan this QR code.

Inspect the terminal

Because payment terminals process sensitive card data, it is important to make sure that the terminal you received is the correct one, supplied by Adyen, and hasn't been tampered with. If any of the following checks fails, contact our POS Support Team immediately.

  1. Verify that the box containing the terminal hasn't been opened and that the security seal is intact.
    The security seal is a red label with a bar code and a number, stuck across the lid of the box.
  2. If you have access to the Adyen Customer Area, log in and under Point of sale > Orders and returns find the order for your terminal. Then:
    • Verify that the terminal serial number (S/N) on the box is the same as in the Customer Area.
    • Verify that the security seal number on the box is the same as in the Customer Area .
    • Using the track & trace information in the Customer Area, track the order with the carrier to verify that they confirm having delivered the payment terminal.
  3. Break the security seal, take the terminal out of the box, and verify that the serial number (S/N) on the terminal itself is the same as the serial number on the box.
  4. Inspect the terminal for tampering. Check for missing seals or screws, additional wires or labels, holes in the device, and anything inserted in or attached to any part of the terminal such as the card reader or ports.

Turn on/off

If you turn on the payment terminal for the first time or after it was off for a long time, it may make a maintenance call to synchronize the configuration and update the software. This can take 10 to 20 minutes.

Turn on the terminal:

  • Connect the terminal to a power supply.
    or
  • Press and hold the Confirm key until the display turns on.

During startup the display turns on and off a few times.

Turn off the terminal:

  • Press and hold the Cancel key until (after 5 - 20 seconds) the display turns off.
    or
  • Disconnect the terminal from the power supply.

Connect to your network

To enable the terminal to reach the Adyen payments platform and make payments, you need to set up a network connection on the terminal. Follow the instructions for the type of network connection that you want to use.

Connect to your wired network

  • Connect an Ethernet cable to the Ethernet (LAN) port on the dongle.
    That's the port marked with ETH or this symbol:
Connecting the wrong type of cable to the Ethernet port or connecting the Ethernet cable to the wrong port (for example, the RS232 port) may severely damage the terminal.

Connect to Wi-Fi

If the terminal is not yet boarded:

  1. On the terminal display, select Configure network.
  2. Select Wi-Fi.
  3. Turn on the Wi-Fi toggle switch.
  4. Select the + icon to add a network. The terminal scans for Wi-Fi networks.
  5. Choose the desired network from the list and enter the Wi-Fi password, or select Add manually and enter the name (SSID) of the Wi-Fi network and the Wi-Fi password.
  6. Select the check mark to confirm.
    The terminal sets the network as default automatically, and connects to it.
    You'll now see a Wi-Fi icon at the top of the display.

If the terminal is boarded:

  1. Go to the Admin menu.
  2. Select Network > Wi-Fi and make sure the Wi-Fi toggle switch is turned on.
  3. If the desired network is not already listed, select the + icon to add a network. The terminal scans for Wi-Fi networks.
  4. Choose the desired network from the list and enter the Wi-Fi password, or select Add manually and enter the name (SSID) of the Wi-Fi network and the Wi-Fi password.
  5. Select the check mark to confirm.
    The terminal sets the network as default automatically, and connects to it.

(Optional) Configure a static IP address

By default, DHCP is enabled on the payment terminal. This allows your DHCP server to dynamically assign an IP address to the terminal.

However, it's possible that your network setup requires the terminal to have a static IP address. In that case, you need to disable DHCP and manually enter network details, including a static IP address.

The static IP address must be unique in the network.

Assigning a static IP address to the terminal

  1. After the terminal is connected to the internet, go to the Admin menu.
  2. If you are using the terminal's wired (Ethernet) connection:
    1. Select Network > Ethernet.
    2. Clear the Use DHCP check box.
    3. Enter the IP address, the Subnet mask, the Router, and the preferred and alternate DNS for your network.
      To type a period (.), press 1 twice.
    4. Select Apply.
    Or, if you are using the terminal's Wi-Fi connection:
    1. Select Network > Wi-Fi.
    2. Select the i (information) symbol for your network and then select IP settings.
    3. Turn off the DHCP toggle switch.
    4. Enter the IP address, the Subnet mask, the Router, and the preferred and alternate DNS for your network.
      To type a period (.), press 1 twice.
    5. Select the check mark to confirm.

Test the connection with our platform

Payments made with the terminal are processed on the Adyen payments platform. To test the connection with our platform:

  1. Go to the Admin menu.
  2. Select Network > Diagnostics > PSP connection.
  3. Check whether all items have a green check mark -white_check_mark- and the overall result is Success.
    Don't worry if Receiving data has a red cross -x- and the result is No Error; the terminal successfully connected with our platform.

Test the cash register connection

To test the connection with your cash register:

  1. Go to the Admin menu.
  2. Select Network > Diagnostics > Terminal API.
  3. Check whether all items have a green check mark -white_check_mark- and the overall result is Success.
  4. Select the Cancel button to go back to Diagnostics, and select Endpoints.
    The terminal runs tests on four URLs and then shows a final screen.
  5. Check whether all four URLs in the final screen have a green check mark -white_check_mark-.

Troubleshooting

Self-service

If there is an issue with your payment terminal, first try to diagnose and solve the issue yourself, using our Troubleshooting documentation. In many cases, this will be the quickest solution.

Ask for assistance

If you can't resolve the issue using the Troubleshooting documentation, send an email to the POS Support Team.
Provide the following information:

  • Merchant account.
  • PSP reference of the transaction, if applicable.
  • Terminal serial number. This number is available in the Device info and also printed on the back of the terminal (for example, S/N:123-456-789).