: When you click Settings → Screen Settings , the password 168 is required before you can adjust parameters such as the control card model, screen width/height (in pixels), and connection type.

In some versions or advanced menus, the password 888 may also be used for hardware configuration.

: For security, you can change the Wi-Fi password within the "Communication Settings" tab of the software. It is highly recommended to do this to prevent unauthorized access to your sign. Troubleshooting Tips

A common default for many industrial software tools.

Yes. Many Huidu products (e.g., HD2016, HD‑U60 series) share this default password for compatibility. However, always verify with the specific product manual.

To configure your LED panel parameters using the default password, follow these steps: Open the software on your computer. Click on the Settings option in the top menu bar. Select Screen Settings from the drop-down menu. A pop-up box will appear asking for a password. Type 888 (or 168 ) into the field and click OK .

Get the official software from a trusted source, such as the Huidu Software Download page. The software works on Windows 7 and Windows 10.

Leaving default factory passwords active poses a major security vulnerability, allowing unauthorized users within range to alter display content. Modifying the Wi-Fi Access Key

: This password is often used for advanced developer options or specific panel setups within the software.

or a on how to change the default password?

Note: This may also reset other screen parameters, requiring you to reconfigure the screen settings in the software LedInCloud