Overview
Step 1: First identify how the LED display receives updates. Currently, about 99% of displays support updates via USB drive, serial cable, Ethernet, WeChat, Wi-Fi, or mobile phone remote control. Based on the communication method, you can change the display text, adjust font size, modify display effects, set dwell time, and more.
Image: Ethernet, USB, and serial triple-interface control card
Step 2: Know the control card, model, and display resolution
After identifying the control card type, determine the control card brand and model, and the display resolution. If unsure, count the LEDs: for example, if the width has 1024 LEDs and the height has 48 LEDs, the resolution is 1024*48. For P10, a module resolution is 32*16, so width = number of modules * 32 and height = number of modules * 16. Then download the corresponding control software to modify fonts and content.
Note: Control cards are typically located at the right end of the display and are often held by magnets. Use a blade or pliers to open the cover if necessary.
Method 1: Update via USB drive
USB drive updates are the most common method for single-color LED displays because they are fast and convenient. In the control software menu, choose the USB save option to save the configuration and content onto a USB drive. Insert the USB drive into the display USB port; the control card typically reads the content within 3 to 5 seconds.
Method 2: Update via serial cable
Serial connections were widely used from about 2005 to 2011. After that, many systems migrated to USB updates. To use a serial connection, connect the LED display to a computer, open the control software, configure the screen parameters, and set up communications. Once the software shows communication is successful, edit the program content and click send or upload.
Method 3: Update via mobile phone or remote control
Edit a text message and send it to the display to update or change the advertising text. This method is supported by displays with SMS or remote-control interfaces.
Method 4: Update via Ethernet
Ethernet is commonly used in enterprise environments. In the software menu, use multi-screen group send and search for IP addresses or connect directly to find the LED display. After the display is found, send the content. The software will report a successful send.
Method 5: Update via WeChat
WeChat-based updates are available in newer control systems. This solution avoids relying on mobile carrier signal or SIM cards. The display connects to the Internet through a router for stable connectivity. Once the display is discovered in the WeChat interface, send the content and the update will be applied.
Method 6: Update via Wi-Fi
In the software menu, configure the Wi-Fi SSID and password to establish communication with the display. Once the display is found, send or upload the content. Verify on the screen that the displayed content matches the intended update.
Conclusion
The six methods above cover approximately 99% of LED display text update scenarios. Use the method that matches your display's control card and communication interfaces.
