I have a question about the S3's barometer capabilities. I installed Samsung's S Baro app (available through the More Services option in the app drawer), and this shows the barometric pressure and altitude above sea level. However I am not sure that the barometer sensor is working correctly. I live very close to a major UK airport and am familiar with aviation weather issues because of my involvement with flight simulators. S Baro is currently giving me a pressure reading of 994 hPa. However the current pressure report from the airport (less than 5 miles away) is 1004. So I have tried another barometer app from the Play Store, and this too is giving me a reading of 994. The error is clearly not coming from the app. Does anybody know how the phone's barometer sensor can be calibrated? There are no options for this in the S Baro app. Thanks.