https://devzone.nordicsemi.com/f/nordic-q-a/83998/serial-lte-modem---how-to-send-binary-data-using-at-xsendHello, What is the way to send binary or JSON data using AT#XSEND socket command in the new SDKs (&gt;1.60)? Former version of this command contained additional parameter &lt;datatype&gt; which allowed to switch between data type. It seems current version doesen-USTelligent Community 13Mon, 07 Feb 2022 12:16:44 GMThttps://devzone.nordicsemi.com/thread/351519?ContentTypeID=1Mon, 07 Feb 2022 12:16:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2d7cda01-652b-43ce-920d-8de97e9f1f09Hakon<p>You should run SLM in data mode. And then run the AT#XSEND without any parameter. You can read more about how it&#39;s done <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/slm_data_mode.html">here</a>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/350269?ContentTypeID=1Fri, 28 Jan 2022 15:54:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f1fa2062-34cd-4e62-9e3c-9146fde1361aSlawoj<p>Hello Hakon,<br />thanks for answer.<br /><br />In our case, converting data to string and reconverting on the other side <span class="VIiyi" lang="en"><span class="JLqJ4b ChMk0b"><span>is not a possible solution</span></span></span>.<br />Devices will communicate with the dedicated server in the internet which have already running application and serve thousands of devices. Any modifications of protocol are not allowed.<br /><br />Some another option?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/350259?ContentTypeID=1Fri, 28 Jan 2022 15:19:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:829bbbea-37a0-48a2-a60f-f41f5552a8f2Hakon<p>Hello,</p> <p>you probably need to send the JSON object or binary data as a string, and then parse it on the receiving side. There are some functions that can be useful in the <a href="https://github.com/nrfconnect/sdk-cjson/blob/main/README.md">cJSON library</a>.</p><div style="clear:both;"></div>