How to write comments on led display lights?

First of all, you need to know how to change the font of led display. There are usually three ways: serial port, USB flash drive, mobile phone (or remote control). According to the corresponding operation mode, how to change the text on the LED display screen can be operated. 1. Connect the LED display to the computer through the serial port, open the display control software, set the screen parameters, edit the program font, and click Send. /2. Change a column in word/software menu through USB flash drive, click USB download, and save the setting parameters and contents to USB flash drive. When changing the program, you only need to copy the content with a USB flash drive and take it to the led display for replacement. 3. You can send and change advertising subtitles by changing words and editing short messages on your mobile phone (or remote controller).