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You can update the cashless reader firmware and configuration:
  • Remotely: via Nayax Core or OTI Terminal Management System (TMS)
  • Locally: from a Windows PC using the UNO-8 Manager

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Remote Update from Nayax Core

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Update Reader (POS) Firmware

1

Select the required machine

2

Select Actions | Update Device Version

3

Select the Main Requested FW Version

Select EMV Core v1.x.
4

Select the POS Requested FW Version

Select the required firmware:
  • For UNO-mini:
    • RTOS SDK firmware starts with EMVSC_ (e.g., EMVSC_v07652)
    • The first RTOS SDK version is named EMVS_v071558_ec
    • Linux or Android SDK firmware starts with EMVS_
  • If more than one firmware is available for your device, take the latest one.
5

Select Apply

This adds the action to the Queue.

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Reader (POS) Kernel Configuration

The kernel configuration is automatically selected by Nayax Core based on Country, Billing Provider, and Device type. Follow these steps to trigger the update:
  1. Ensure the correct Country is set in the machine’s General settings.
  2. Ensure the correct Billing Provider is set in the machine’s Payment settings.
  3. Select Actions | Reboot device to initiate a device power-up.
  4. Wait 5–10 minutes for the device to receive its kernel configuration, then verify in the Embedded Advanced section under POS Configuration Version Name.
Expected configuration names:
CountryBilling ProviderPOS Config Version PrefixExample
USAHeartland Nayax EMVHTL_HTL_25
CanadaCityCardPayment (Nuvei)NUV_NUV_12
Europe, UKCredorax (Finaro/Shift4)FIN_FIN_14
Other countriesStubb billing (test only)FIN_FIN_14

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Machine Configuration

To push a new configuration to the device:
1

Update a machine attribute

Open the Embedded or Embedded Advanced section and update the relevant attribute.
2

Press Save

This adds the changed attributes to the Queue.
Any attribute change causes a complete update of all machine attributes.

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Remote Update from the TMS

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Update Reader Firmware

  1. Log in to OTI TMS and select the Terminals tab.
  2. Select the terminals you wish to update.
  3. Open the Command builder.
  4. Select the SAT_PROG command.
  5. Select the firmware file (*.Oef), found in .\Firmware and Configuration.
  6. Press Send and wait for the process to complete, or use Add Command to batch for additional commands.

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Update Reader Configuration

Follow the process above, but use:
  • Command: SAT_CONFIG
  • Configuration file: For UNO-8/PLUS, use a *.zip configuration pack (e.g., EVO_UNO8_135.zip).
  • SDK configuration files are in .\Firmware and Configuration.
After updates are complete, send the GET_VERSIONS command so all changes are reflected in the TMS.

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Local Update from a Windows PC

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UNO-8 and UNO-mini

  1. Install UNO-8 Manager v4.0 or above from the SDK: .\Utilities\UNO-8 Manager folder.
  2. Connect your reader to the PC.

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Update Firmware

  1. Open UNO-8 Manager and select the Upgrade FW tab.
  2. Select the firmware file (.\Firmware and Configuration).
  3. Press Upgrade and wait for the process to complete.

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Update Configuration

1

Open UNO-8 Manager

Select the File System tab.
2

Navigate to the CONFIG folder

Open Windows File Explorer and navigate to the Reader CONFIG folder (e.g., .\Firmware and Configuration\Reader Configuration\USA\CONFIG).
3

Drag the configuration files

Drag the 3 configuration files from File Explorer into the S:\CONFIG folder in UNO-8 Manager.
4

Delete the previous configuration file

Right-click the old file and select Delete file.
5

Reset the device