Download your preferred driver and unzip it to a folder on your desktop.
A direct link to a reliable Prolific Driver V4.08 is often recommended by community forums for stabilizing "puck style" GPS units. How to Install on Windows 11
Uncheck "Show compatible hardware" if necessary, and look for an older version (e.g., Version 3.3.2.105 or similar from 2008/2010). Windows 11 often requires these older, digitally signed versions to bypass current chipset verification blocks. G Star Iv Gps Driver Download Bu-353s4 Windows 11
You can find a dedicated Windows 11 Driver directly on the GlobalSat support page.
Expand the Ports (COM & LPT) section. Look for "USB Serial Port" or "Prolific USB-to-Serial Comm Port". Update Driver Manually: Right-click the device and select Update driver . Choose "Browse my computer for drivers" . Download your preferred driver and unzip it to
Once installed, the LED on your BU-353-S4 should be solid (searching for signal) or flashing (position fix). Key Specifications & Tips G star iv gps driver installation
Getting the GPS receiver to work on Windows 11 can be tricky because the hardware relies on a Prolific USB-to-Serial chipset that sometimes triggers compatibility errors with newer Windows security policies. Official Driver Downloads Windows 11 often requires these older, digitally signed
If your computer shows an error like "This is not Prolific" or an exclamation mark in Device Manager, follow these manual installation steps to force the correct version:
To start, always try the official manufacturer sources first. The BU-353-S4 uses the Prolific PL2303 chipset.