This is, by far, the most frequent issue. The software cannot find the WS6906 on any COM port.

A common misconception is that you can upgrade the WS6906 by simply placing the firmware file on a USB stick and plugging it into the device. This is a supported method, and users have confirmed that it does not work. The USB port is for connecting to a computer for the upgrade process, not for direct reading from a flash drive.

software (firmware) is critical to ensuring the device can still detect new satellites, maintain accurate tracking, and operate efficiently. This article provides a comprehensive guide on how to perform a software upgrade on the

Click the or Next button in the PC software. The program will enter a "waiting/connecting" state.

Are you encountering a during the process?

If your WS6906 shows only a black screen or backlight with no response, try this:

Before beginning the upgrade process, gather the necessary tools:

Set the Section/Mode to or Software (depending on whether you want to overwrite everything, including the satellite list, or just the system software). Step 4: Load the Firmware File Click the Browse or Open button within the upgrade tool.