Do not use the latest driver from Windows Update or the standard Prolific website, as it will disable your device. Instead, download the legacy driver package.
Since the internal chip is Prolific, you can download the "PL2303 Windows Driver Installer" directly from Prolific’s website. 3. Step-by-Step Installation Guide for Windows 11 Step A: Clean the Old Drivers Disconnect your BU-353S4 from the USB port. Right-click the Start button and select Device Manager . Go to View > Show hidden devices .
When Windows 11 automatically updates your drivers, it installs a version that renders the GPS receiver non-functional, resulting in a . G Star Iv Gps Driver Download Bu-353s4 Windows 11
: Use the GlobalSat GPS Info Tool to verify the device is receiving satellite signals once the driver is active.
Windows 11 frequently tries to automatically update drivers. If your GPS stops working after a Windows Update, repeat the "Let me pick from a list" steps in Device Manager to switch back to the functional legacy driver. Do not use the latest driver from Windows
How to Download and Install G-Star IV GPS Driver (BU-353S4) on Windows 11
The G-Star IV (BU-353S4) is an older device that uses a Prolific PL-2303 USB-to-Serial chip. Windows 11 often blocks the older drivers these devices require, or automatically installs a generic driver that causes a "Code 10" error (Device Cannot Start). Go to View > Show hidden devices
If you see garbled characters instead of clean NMEA sentences, your baud rate is wrong. Ensure your mapping or navigation software is strictly set to 4800 Baud .
is an older hardware model using an early Prolific PL2303 chip, Windows 11's automated system updates will frequently install an incompatible modern version. This modern version results in a "Code 10 (Device cannot start)" error inside the Windows Device Manager.
However, users transitioning to frequently encounter a frustrating barrier: the device stops sending data, or the Windows Device Manager throws an error indicating that the device is unrecognized or unsupported. This issue does not mean your GPS receiver is broken; rather, it is a driver architecture mismatch caused by the internal Prolific PL2303 USB-to-Serial chip .
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