# How to use the MTNET OEM Demo via USB Interface

The following instructions detail how to use the MTNET OEM Demo with mDynamo or DynaDip on Windows PC via USB interface.

MTNET OEM Demo queries for device features upon connecting. Some demo features are disabled based on what is supported on the device. MTNET OEM Demo does not automatically set Time.

* Connect the device to the USB port of the Windows PC.
* Launch the MTNET OEM Demo and press the   button to scan for connected USB devices

<figure><img src="/files/bxWwsWVlnAZt7834BcsK" alt=""><figcaption></figcaption></figure>

* If your device has an additionally attached device to its SPI or UART port, select the appropriate device type in the list for SPI port and UART Port before connecting.

<figure><img src="/files/9e6jMMDDAXr229WmwttW" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/F8aVLN1WBuOgtZPnLB37" alt=""><figcaption></figcaption></figure>

* Select the Device ID and press the Connect button to open the device

<figure><img src="/files/yo9oxz2VJ0bi33RmmOPM" alt=""><figcaption></figcaption></figure>

* Swipe a magnetic stripe card to read the card data if you have an attached MSR head.

<figure><img src="/files/i8dFK0CkvTRymOpG3ZEy" alt=""><figcaption></figcaption></figure>

* To send a command to the device, enter the command in the command text box, select the appropriate device to send to and press the Send Command button..

<figure><img src="/files/uDDnisT2qH0mMjypn5eG" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/7gQI0a94lTQVaS8uhptC" alt=""><figcaption></figcaption></figure>

* To read a chip card, press the Set Time button and send to the Board. If you have an attached NFC module connected to the UART port, press the Set Time button, and send the UART before reading a contactless card.

<figure><img src="/files/FuJSkdpoZQ6XsWgDpVq5" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Po0bEnU1TNT2zk3TCTdQ" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Fj5bg3E3hzPMZsnerXW0" alt=""><figcaption></figcaption></figure>

* To begin an EMV transaction, select desired Transaction type and Response, press the Start button, and then present the appropriate card whenthe Present Card message appears.&#x20;

<figure><img src="/files/ix8bDhoi0RYMlxLfsgOq" alt=""><figcaption></figcaption></figure>

* Select an Application in the Select Application window.

![](/files/bn8Gg2H06BcuTVOIivgo)<br>

* If you want to cancel the EMV transaction, press the Cancel button. Please note that the cancel feature will only work before the card is inserted.

<figure><img src="/files/DJqi94iFIFeV2TxILbYC" alt=""><figcaption></figcaption></figure>

* To clear the screen, press the Clear button.

<img src="/files/iJ6vcfJ7eK38zWMlxaAj" alt="" data-size="original">

* To close the device, press the Disconnect button

![](/files/t9qTkfTaAtiW3tjgRByZ)

![](/files/9ya3CjdokGIhqLU9MRGY)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.magtek.com/hardware/card-readers/magnetic-stripe-readers/idynamo-5-gen-iii/documentation/developers-manuals/programmers-manual-.net-demo-guide/how-to-use-the-mtnet-oem-demo-via-usb-interface.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.