If the screen cannot be full (with black borders), you can cancel the display on the wireless screen transfer page

1. Check whether the firewall is turned on on the consultation screen and prohibit any access;
2. Check whether 360 and other antivirus software are installed on the consultation screen, if so, you can uninstall the antivirus software or add the xicoo program to the whitelist (trust) in the isolation area of the device

1. Determine whether the large screen is turned on and restart the large screen;
2. If the restart is ineffective, modify the wireless hotspot name of the large screen, you can change the SSID in Settings - Wireless Hotspot - (the wireless screen transmission box needs to be modified in the background of the transmission box), restart the large screen after modification, and re-pair the wireless transmitter.

Turn on the power, turn off the energy-saving mode, set the brightness to the highest, and bake for about 24 hours

1. Check the power cord connection;
2. Replace the power cord test (national standard 10A power cable);
3. Replace other sockets for testing;
4. The horizontal screen diagnostic display has a boat type switch, which needs to be checked whether it is turned on

1. Check whether the software is fully downloaded and try to reinstall the software;
2. Install the .net environment, which can be downloaded and installed
in the random CD

1. Determine whether the graphics card is installed correctly, and ensure that the interface is fully connected

2. Uninstall the old graphics card driver and install the new graphics card driver;

3. Determine whether the computer operating system and the downloaded graphics card driver system match, download the correct driver and reinstall it