G Star Iv Gps Driver [updated] Download Bu-353s4 Windows 11 (2026)

The Little Puck That Could: Conquering Windows 11 with the BU-353S4 GPS

In the world of high-precision navigation, there exists a quiet legend. It isn't flashy. It doesn’t have a touchscreen or a voice assistant. In fact, it looks like a slightly overweight computer mouse that fell into a vat of black epoxy.

It’s the GlobalSat BU-353S4.

For over a decade, this "GPS puck" has been the unsung hero of ship captains, open-source sailors, drone mappers, and digital nomads. But in late 2025, a low hum of panic spread through the navigation forums. The culprit? Windows 11. G Star Iv Gps Driver Download Bu-353s4 Windows 11

The question echoing through the chat rooms: How do I get the G Star IV driver to work on Windows 11?

Here is the strange, fascinating journey of keeping a piece of hardware legend alive on Microsoft’s latest operating system. The Little Puck That Could: Conquering Windows 11

5.2 Configuring Navigation Software

Whether using OpenCPN (marine), OziExplorer, or proprietary fleet software:

• Protocol: NMEA 0183
• Port: The COM port assigned in Device Manager.
• Baud Rate: 4800 (Standard NMEA) or sometimes 38400 (if the device was previously reconfigured).

Part 2: The Correct G Star IV GPS Driver Download for Windows 11

Warning: Do not use random "driver updater" software. They often install malware or incorrect Prolific drivers that crash Windows 11. Protocol: NMEA 0183 Port: The COM port assigned

Below are the only two safe sources for the BU-353S4 driver on Windows 11.

8. Security & Privacy Considerations

• Only download drivers from vendor or well-known official sources.
• Avoid uploading personal files or credentials when troubleshooting.
• NMEA GPS data is location-sensitive—be mindful when sharing logs.

5. Installation Procedure (assumes CP210x or PL-2303 driver)

1. Download correct driver (x64 for 64-bit Windows 11).
2. Unblock installer if downloaded from Internet: right-click → Properties → Unblock (if present).
3. Run installer as Administrator and follow prompts.
4. Reboot system if prompted.
5. Plug the GPS device into a USB port; allow Windows to finish driver installation.
6. Confirm COM port assignment in Device Manager under “Ports (COM & LPT).”

If Windows driver signature enforcement blocks installation:

• Use official signed drivers; avoid disabling signature enforcement unless necessary.
• If necessary for testing, temporarily disable driver signature enforcement (advanced troubleshooting) and reinstall, then re-enable enforcement.