You are technically comfortable using Device Manager, identifying chip IDs, and temporarily disabling driver enforcement.
Windows 11 64-bit has removed support for older Prolific PL-2303 chips (HXA, HXB, etc.). If your G-Star IV uses an old Prolific chip, it will never work via USB on Windows 11 unless you find a specific, unsigned workaround driver from Prolific's official site (which is risky).
Before downloading, identify your G-Star IV version: g-star iv gps driver download windows 11 64 bit
For users of the GlobalSat BU-353S4 USB GPS receiver—commonly known by its chipset name, —installing the correct driver on Windows 11 64-bit is essential for accurate navigation and data tracking. While Windows 11 often attempts to manage drivers automatically, manual installation is frequently required to ensure the device is assigned a stable COM port for software like Google Earth, maritime navigation, or Aadhaar registration kits. Direct Download & Installation Steps
Check Device Manager to see which port (e.g., COM3) was assigned. Before downloading, identify your G-Star IV version: For
Windows 11 enforces stricter WHQL certification. The same driver that worked in Windows 10 may be blocked. Reinstall using the manual method above.
The "G-Star IV GPS driver for Windows 11 64-bit" does exist as a simple file. You are actually installing a Prolific or SiRF serial driver from the chip manufacturer, often with workarounds. Do not trust the third-party driver sites. Use Bluetooth if possible, or buy a modern receiver. Windows 11 enforces stricter WHQL certification
For 90% of users with an older G-Star IV, you need the Prolific PL-2303 legacy driver package .
If the installer fails, do a manual update:
: Locate the downloaded ZIP file, extract it, and right-click the .exe installer. Select "Run as administrator" to bypass Windows 11 security restrictions.
Open Command Prompt as Admin → bcdedit /set testsigning on → Reboot. (Place a watermarks on desktop – harmless)