I cannot get the Altitude and Barometer to work correctly. I get to Manual Calibration and set it 'On'. I set the correct Baro, right now 1030mb and I see the altitude as 36 meters, it should be 54 meters. If I then set the altitude to 54 meters the baro goes to 1024mb !!!!!!!!!!!!!!! With manual calibration on or off I cannot get the relationship between barometer and altitude to change. It is stuck with a 6mb error. I have tried a couple of different height/baro apps but all have the same problem. I have carefully followed cleaning instructions (it is new it should be clean) but it does not help.