Accelerometer Troubleshooting - Nokia Lumia 1320 Service Manual

RM-994/ RM-995/ RM-996
BB Troubleshooting Guide
Magnetic compass troubleshooting
Phone E-compass sensor
does not work
Run Magnetic compass
In Care Suite
"Magnetic compass Test"
No any response
Measure
Vreg_L9_2V85 from
C3609. Is voltage
2.85V?
YES
Measure
VREG_LVS2_1V8 from
C3608 is voltage 1.8V
YES
Is I2C I/F ok?
YES
Resolder/Replace a new E-compass
Sensor U3602
No
Change Main board
If this is single axis dysfunction
Checking the relative power circuit about
No
VREG_L9_2V85
Checking the relative power circuit about
No
VREG_LVS2_1P8
Also Check I2C of P/L Sensor
No
And find out which is broken
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