LG LG-V909DW - 4.19 Gyro;Compass sensor troubleshooting

4. TROUBLE SHOOTING
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4.19 Gyro/Compass sensor troubleshooting
The compass sensor is calibrated by the gyro sensor data using SW algorithm. Therefore Gyro sensor error makes
the compass sensor malfunction.
Start
Gyro & Compass Sensor
function chec
k
Gyro & Compass
is OK?
Change the compass sensor
IC (U903)
Function is OK?
END
END
END
Yes
No
No
Yes
Yes
Gyro - OK
Compass - NG?
No
Yes
Gyro
- NG
Com
p
ass - OK?
Change the Gyro Sensor
IC (U1)
No
Change the Gyro sensor
IC (U1)
Function is OK?
END
Yes
No
Change the main board
Function is OK?
END
Yes