Users of the Samsung Galaxy S phones (T-Mobile Vibrant & AT&T Captivate) may experience poor GPS results due to a GPS bug. Samsung and your carrier will provide an OTA fix soon, but until that time you may fix the issue by following these steps:
- Disable “Use Wireless Networks”. Navigate to Settings > Location & Security > uncheck the box next to “Use Wireless Networks”
- Go to the phone and dial *#*#1472365#*#*. This step throws you into LBSTestMode menu.
- In the LBSTestMode menu, change “Operation Mode” to MS Based.
- In the LBSTestMode menu, find “SUPL/CP Settings” and change the SERVER & PORT to supl.google.com and port 7276 (DO NOT use www. in front of supl).
- Reboot you phone (turn off and on).
- Enable “Use Wireless Networks”. Navigate to Settings > Location & Security > check the box next to “Use Wireless Networks”.
Feel free to email me if you have any questions.
Jeff
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