Compass Sensor Troubleshooting - LG -d821 Service Manual

3.14 Compass sensor troubleshooting

When the Compass sensor does not work, the reason is chip problem. If the Compass sensor IC is damaged, it will do not
work even thought power is supplied and MSM8974 controls normally. Also, Compass is connected to Gyro/Accel sensor
directly. Therefore if the Compass sensor does not work, change the Compass sensor IC, and Gyro/Accel sensor or main
board sequentially.
(Changing Sequence : Compass -> Gyro/Accel -> Main board )
LGE Internal Use Only
START
Check the Compass sensor function
Is the function normal operation?
No
Change the Compass
Sensor IC (U11005)
Is the function normal operation?
No
Change the Gyro/Accel IC
or main board sequentially
Is the function normal operation?
Yes
END
Yes
END
Yes
END
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3. TROUBLE SHOOTING
Only for training and service purposes