This is a WiFi wireless tool program produced by Advantech, which can be used with Advantech's electronic paper (models: EPD-562, EPD-662, EPD-660) to assist the electronic paper device to run the server through the Bluetooth and WiFi functions of the mobile phone. Connection. Users can connect the device to Advantech's electronic paper background management system DeviceOn/ePaper under the same network segment through their own WiFi sharing device. In addition, this utility program also has the function of searching and batch updating, which can connect the nearby electronic paper device to the nearby WiFi sharer at one time. In addition, this utility can keep a record of all connections, which is convenient for users to carry out the next field deployment.