Accelerometer Failure; Maintenance Process - Huawei P20 Maintenance Manual

4.6 Accelerometer Failure

4.6.1 Maintenance Process

Accelerometer failure
calibrated using a level
Is the failure rectified
after the calibration?
have cosmetic defects or soldering
sensors (compass, accelerometer,
and gyroscope) on the I2C0 circuit
Replace U2602
2019-6-25
EML-L29V100R001 Advanced Maintenance Manual V2.1
Is the sensor
instrument?
Yes
No
Does U2602
issues?
No
Are all the
abnormal?
No
No
Calibrate the sensor using a
level instrument
Yes
Yes
Replace or re-solder U2602
Yes
Do any
components on the I2C0
circuit have cosmetic defects or
soldering issues?
No
Is the sensor power
supply normal?
Yes
Is the I2C0 signal normal?
Yes
Replace the faulty
sensor
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Yes
Replace or re-solder the
faulty components
No
If there are no
soldering issues,
replace U1000
No
If there are no
soldering issues,
replace U300
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