USGlobalsat BR-355 (Mac) - Manual (Page 8)

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USB_GPS_MAC_ v2.0
USB GPS (Mac)
NOTE: After completing driver installation under Mac OS 10.2.X, a warning may appear stating that “Prolific
USBSerial.kext” has encountered problems. This is due to driver being compiled under OS 10.1.X. Three options
will be provided for you to select one; however selecting the “Fix and Use” option will eliminate this conflict.
3. VALIDATE USB DRIVER INSTALLATION
To verify that your device is recognized by the Operating System you can open the System Profiler.
To access System Profiler perform the following.
First, place mouse pointer and select the blue apple icon on the top left hand side of the Apple menu. Then, select
the following “About This Mac”->”More Info…”-> Hardware->USB to display device’s detection.
Under USB Device Tree, you will view “USB Device” this pertains to your GPS USB receiver. Driver information can
be found under USB Device window.
4. UN-INSTALL THE USB DRIVER
To uninstall the Prolific USB driver, follow these steps:
1. Open "Applications-> Utilities-> Terminal". You need to create ID & password first on NetInfo Manager.
2. Login to root user and type "su" and enter password.
3. Type "cd /System/Library/Extensions" to go to the "Extensions" folder.
4. Unload the driver (if it had been loaded) by typing "kextunload PL2303.kext" or "kextunload
ProlificUsbSerial.kext"
5. Remove the driver by typing "rm -r PL2303.kext" or "rm -r ProlificUsbSerial.kext".
See FAQ below for more on “root users”