Since GlobalSat’s server can be slow, you can download the chipset driver directly from Silicon Labs. This works 100% for the G Star IV chipset.
To successfully install the GlobalSat BU-353-S4 (G-Star IV) GPS driver on Windows 11
Why does this matter? Windows 11 does not natively recognize the "SiRF Star IV" by name. Instead, it sees the USB-to-Serial bridge chip. The BU-353S4 uses a variant. Microsoft removed built-in support for older PL-2303 chips (HXA, HXD) in Windows 11. However, the BU-353S4 typically contains the PL-2303TA (or TB), which is compatible if you install the correct Prolific driver, not a "GPS driver." G Star Iv Gps Driver Download Bu-353s4 Windows 11
If there is a yellow warning triangle, right-click it and choose , then select "Search automatically for drivers". 3. Troubleshooting BU-353S4 on Windows 11 If the device still does not work, try these steps:
If you are trying to download and install the correct , this definitive guide will walk you through finding the authentic files, executing the installation, and troubleshooting common errors. Understanding the BU-353S4 Hardware Compatibility Since GlobalSat’s server can be slow, you can
To test the data stream, download the (GPSInfo.exe). Open the tool, select your assigned COM port, set the Baud Rate to 4800 , and click Connect . You should see NMEA data sentences scrolling rapidly across the screen. Step 5: Prevent Windows 11 from Overwriting the Driver
No. GlobalSat does not write USB drivers; they depends on Prolific. Any website offering a "G Star IV GPS Driver.exe" is likely a repackaged Prolific driver or malware. Windows 11 does not natively recognize the "SiRF
Look at the list of installed drivers. Select (dated 2008 or 2009) or Version 3.4.62.293 . Do not select the newest 2021+ version.
Open the utility, select the exact COM Port listed in your Device Manager, and set the Baud Rate to 4800 (the standard baud rate for the BU-353S4).