USB Interface Usage Problem
<p>[TOC]</p>
<h3>I. Problem Phenomenon</h3>
<h4>1、USB WIFI is not recognized problem</h4>
<p>The device is plugged into the USB WIFI module before powering up, and there is a probability that the USB WIFI will not be recognized.</p>
<h4>2、Problems with USB ports connected to USB drives or removable drives being formatted.</h4>
<p>【IMPORTANT WARNING】The problem of data loss when the device is inserted into a U disk or removable hard disk and the disk is formatted.</p>
<h4>3、USB connected to the U disk or mobile hard disk can not be recognized problems</h4>
<p>The device does not recognize the connected USB drive or removable drive.</p>
<h4>4、USB to RJ45 can not identify the problem</h4>
<p>The USB turn RJ45 module is plugged in before the device is powered up, and there is a probability that the USB turn RJ45 will not be recognized.</p>
<h3>II. Analysis steps</h3>
<h4>1、USB WIFI is not recognized problem</h4>
<p>Follow the steps below to investigate the causes of the problem one by one:</p>
<ul>
<li>1.1 Plug in the USB WIFI module after power on.；</li>
<li>1.2 Check if the type of USB WIFI module is the manufacturer's recommended model.</li>
<li>1.3 Replace the USB WIFI module.</li>
</ul>
<h4>2、Problems with USB ports connected to USB drives or removable drives being formatted.</h4>
<p>Follow the steps below to investigate the causes of the problem one by one:</p>
<ul>
<li>2.1 Before using USB to connect the disk, check if the USB use is " No ".</li>
<li>2.2 Then the disk is inserted into the USB port.</li>
</ul>
<h4>3、USB connected to the U disk or mobile hard disk can not be recognized problems</h4>
<p>Follow the steps below to investigate the causes of the problem one by one:</p>
<ul>
<li>3.1 Before using USB to connect the disk, check if the USB use is " No ".</li>
<li>3.2 Check if the file system format of the disk is FAT32.</li>
<li>3.3 Then the disk is inserted into the USB port.</li>
<li>3.4 Unrecognized, then replace the disk.</li>
<li>3.5 If multiple normal disks are not recognized, you need to determine whether the device USB interface is good.</li>
</ul>
<h4>4、USB to RJ45 can not identify the problem</h4>
<p>Follow the steps below to investigate the causes of the problem one by one:</p>
<ul>
<li>4.1 Plugging in the USB turn RJ45 module after powering on.</li>
<li>4.2 Checking that the type of USB turn RJ45 module is the manufacturer's recommended model.</li>
<li>4.3 Replace USB turn RJ45 module.</li>
<li>4.4 Checking whether the IP set by the local network conflicts with the USB turn RJ45.</li>
</ul>
<h3>III. Operating instructions</h3>
<h4>1、Problems with USB ports connected to USB drives or removable drives being formatted.</h4>
<h5>1.1.Before using USB to connect the disk, check if the USB use is " No ".</h5>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=ccc6c4bc171beed32c6d05860c1d3ef8" alt="" /></p>
<h4>2、USB to RJ45 can not identify the problem</h4>
<h5>2.1 Checking that the type of USB turn RJ45 module is the manufacturer's recommended model.</h5>
<h5>2.2 Checking whether the IP set by the local network conflicts with the USB turn RJ45.</h5>
<p><img src="http://118.195.179.210:9000/server/index.php?s=/api/attachment/visitFile&amp;sign=d00c0f13c38d8c28b30e55d8d283bba4" alt="" /></p>