Right-click the installer file (usually PL2303_Prolific_DriverInstaller.exe ) and select .
Follow the on-screen prompts to complete the installation wizard.
Open your chosen navigation software (such as OpenCPN, Microsoft Streets & Trips, or marine plotting software). Set the connection type to Serial/NMEA , select the exact COM Port noted in Step 3, and set the Baud Rate to 4800 .
By following this guide, you can resurrect a $50 GPS puck that many thought was "Windows 11 dead." The BU-353S4 remains one of the most sensitive and water-resistant GPS receivers on the market, and with the correct driver, it will serve you for another decade on Microsoft's latest OS.
Right-click the Windows Start button and select . G Star Iv Gps Driver Download Bu-353s4 Windows 11
Click . The yellow exclamation mark should instantly disappear, and the status should change to "This device is working properly." Note the COM Port number assigned to it (e.g., COM3 or COM4). Step 4: Prevent Windows Update from Overwriting the Driver
If you are using mapping software like OpenCPN, make sure to set the Input Port to the COM number you found in Device Manager and set the baud rate to . Summary of Driver Package for BU-353S4 Chipset: Prolific PL-2303 Driver Version: v4.0.8 or higher Compatibility: Windows 11, 10, 8.1, 7 (64-bit/32-bit) File Name: PL23XX_Prolific_DriverInstaller_v408.zip
It is waterproof, magnetized (so it sticks to your car roof or ship rail), and features a staggering 66-channel acquisition engine. In an era of disposable electronics, the BU-353S4 is a cockroach—it will likely survive a nuclear winter, provided you can find a USB driver for it.
Do not rely on the automatic Windows 11 driver installer. Instead, download the official legacy driver package provided by GlobalSat or Prolific. Set the connection type to Serial/NMEA , select
Download the .zip or .exe installer file to your downloads folder. Step 2: Install the Driver Package
Because the BU-353S4 is honest. It doesn't need the cloud. It doesn't need a SIM card. In the middle of the Atlantic Ocean, or the Arizona desert, or an Alaskan highway with no cell towers—that little blue puck will still whisper your latitude and longitude to your laptop.
Windows 11 "Windows Update" will typically fail to find the correct driver. Manual download is required.
: The first step is to find the official driver from a reliable source. This could be the manufacturer's website or a trusted driver download portal. It is crucial to avoid third-party sites that may bundle drivers with malware. and force-install the correct functional driver.
If your Windows 11 system shows a yellow exclamation mark next to the device in Device Manager—often accompanied by "Error Code 10" (This device cannot start)—this step-by-step guide will help you find, download, and force-install the correct functional driver. The Core Challenge: Windows 11 Compatibility
While the BU-353S4 was originally designed for older Windows versions, official support for is available.
The GlobalSat BU-353S4 is fully compatible with Windows 11, provided the user manually intervenes in the driver installation process. The automatic Windows Update service will likely install an incompatible generic driver.