Sony XperiaC3 Dual, S55t, S55u, D2502, Xperia C3 Troubleshooting Guide

Troubleshooting Guide

T

T

- mechanical -

M

Xperia

C3 Dual

S55t, S55u, D2502

1290-1679 Rev 3

©

Sony Mobile Communications AB – Company Internal

Xperia

D2533

M

C3

CONTENTS

Troubleshooting Guide (mech)

1Problem Areas ................................................................................ 5

1.1 Power .................................................................................................... 5

1.1.1Will not power on or will switch off randomly ........................................... 5

1.2 Keys ...................................................................................................... 7

1.2.1Back, Menu, Home and Multitask Keys ..................................................... 7

1.2.2Volume Key .................................................................................................. 7

1.2.3On/Off Key .................................................................................................... 8

1.2.4Camera Key ................................................................................................ 10

1.3 Touch Screen ..................................................................................... 12

1.3.1Touch Screen malfunction ........................................................................ 12

1.4 Display ................................................................................................ 15

1.4.1Graphics & Illumination ............................................................................ 15

1.5 LED/Illumination ................................................................................. 17

1.5.1LED/Illumination ........................................................................................ 17

1.6 Speaker ............................................................................................... 18

1.6.1Loudspeaker .............................................................................................. 18

1.7 Earphone ............................................................................................ 21

1.7.1Ear Speaker ................................................................................................ 21

1.8 Microphone ......................................................................................... 22

1.8.1Primary Microphone .................................................................................. 22

1.8.1Secondary Microphone ............................................................................. 23

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1.9 Vibrator ............................................................................................... 25

1.9.1Vibrator not generating alerts .................................................................. 25

1.10 Camera ................................................................................................ 27

1.10.1Main Camera .............................................................................................. 27

1.10.2Video Call Camera defects ........................................................................ 28

1.11 Flash LED ........................................................................................... 29

1.11.1Back Flash LED not flashing .................................................................... 29

1.11.2Front Flash LED not flashing .................................................................... 29

1.12 Bluetooth and WLAN ......................................................................... 31

1.12.1Bluetooth or WLAN connection failure .................................................... 31

1.13 NFC ..................................................................................................... 32

1.13.1NFC malfunctions ...................................................................................... 32

1.14 GPS ..................................................................................................... 33

1.14.1GPS malfunctions ...................................................................................... 33

1.15 Compass ............................................................................................. 34

1.15.1Compass fails ............................................................................................ 34

1.16 Accelerometer .................................................................................... 35

1.16.1Accelerometer test fails ............................................................................ 35

1.17 Gyroscope .......................................................................................... 36

1.17.1Gyroscope test fails .................................................................................. 36

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1.18 Ambient Light Sensor ........................................................................ 37

1290-1679 Rev 3

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Troubleshooting Guide (mech)

1.18.1Light Sensor malfunctions ....................................................................... 37

1.19 Proximity Switch ................................................................................ 38

1.19.1Proximity switch malfunctions ................................................................. 38

1.20 Pressure Sensor ................................................................................. 39

1.20.1Pressure Sensor test fails ......................................................................... 39

1.21 Real Time Clock ................................................................................. 40

1.21.1Real time clock test fails ........................................................................... 40

1.22 Total call time ..................................................................................... 41

1.22.1Total call time fails .................................................................................... 41

1.23 External Memory ................................................................................ 42

1.23.1Memory Card not detected ....................................................................... 42

1.24 Security ............................................................................................... 43

1.24.1Security fails .............................................................................................. 43

1.25 FM Radio ............................................................................................. 44

1.25.1No/Poor FM Radio reception .................................................................... 44

1.26 Battery Health test ............................................................................. 45

1.26.1Battery Health test fails ............................................................................. 45

1.27 Flip Slider Counter ............................................................................. 46

1.27.1Flip Slider Counter fails ............................................................................ 46

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1.28 Verify Certificates ............................................................................... 47 

1.28.1Verify Certificates fails .............................................................................. 47

1.29 IrDA Test ............................................................................................. 48

1.29.1IrDA test fails ............................................................................................. 48

1.30 TV-Out Test ......................................................................................... 49

1.30.1TV-Out test fails ......................................................................................... 49

1.31 Network & Signal ................................................................................ 50

1.31.1No/Poor signal ........................................................................................... 50

1.32 SIM ...................................................................................................... 54

1.32.1SIM not detected ........................................................................................ 54

1.32.2Incorrect UIM or SIM indicated ................................................................. 54

1.33 Charging ............................................................................................. 55

1.33.1Battery will not charge by USB connector .............................................. 55

1.34 HandsFree by Wire ............................................................................. 56

1.34.1Connection to portable Handsfree fails ................................................... 56

1.35 Data Communication ......................................................................... 57

1.35.1Data transfer via System Connector fails ................................................ 57

2Revision History ........................................................................... 58

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1290-1679 Rev 3

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Troubleshooting Guide (mech)

Always firstly disconnect the Battery FPC BtB connector to cut off power supply when the Sub
Antenna Assy is disassembled.

Always finally connect the Battery FPC BtB connector before the Sub Antenna Assy is
reassembled.

Note: Accelerometer Calibration always must be performed when Board Swap or wrong
Accelerometer readouts; 1289-2983 Trouble Shooting Application – mechanical.

Note: Touch Panel Calibration always must be performed when replacing Display Frame Assy;
1289-2983 Trouble Shooting Application – mechanical.

1290-1679 Rev 3

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1 Problem Areas

1.1 Power

1.1.1 Will not power on or will switch
off randomly

Check:

Check whether the phone vibrates by pressing the on/off
key.

Action:

1. If activation of the vibrator is detected, refer to section 1.4
‘Display’.

2. If NO activation of the Vibrator is detected, check that the
battery is charging when connected to a charger.

Follow Test Instruction - mechanical chapter 2.3.7
(Charging via USB and Easy Charger), Diagnostic
Battery / Charging status.

Troubleshooting Guide (mech)

Check:

Inspect the on/off key.

Action:

Refer to section 1.2.3 ‘On/Off Key’.

Check:

Inspect the BtB connector of the Battery to Main PBA.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean the both sides of the BtB
connector.

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Problem Areas: Power

3. If the BtB connector, the Battery FPC or the Battery is
damaged – replace the Battery.

4. Replace Main PBA.

Troubleshooting Guide (mech)

1290-1679 Rev 3

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Problem Areas

1.2 Keys

1.2.1 Back, Menu, Home and
Multitask Keys

Action:

1. Refer to section 1.3 ‘Touch Screen’.

2. Replace Main PBA.

1.2.2 Volume Key

Check:

Inspect the external area of the Key Volume.

Action:

If dirty – clean it.

Troubleshooting Guide (mech)

Check:

Inspect the BtB connector of Main FPC Assy to Main PBA.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

3. If the FPC of Main FPC Assy is damaged – replace the
Main FPC Assy.

4. Replace Main PBA.

1290-1679 Rev 3

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Problem Areas: Keys

Check:

Inspect the rubber of the Volume Key (a) and Volume Key
switch (b).

Action:

1. If dirty – clean them.

2. If the rubber of the Volume Key is damaged – replace the
Power/Side Key Assy.

Troubleshooting Guide (mech)

3. If the volume key switch is damaged – replace the Main
FPC Assy.

1.2.3 On/Off Key

Check:

Inspect the external area of the Power Key.

Action:

If dirty – clean it.

1290-1679 Rev 3

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Problem Areas: Keys

Check:

Inspect the BtB connector of Main FPC Assy to Main PBA.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

3. If the FPC of Main FPC Assy is damaged – replace the
Main FPC Assy.

4. Replace Main PBA.

Troubleshooting Guide (mech)

Check:

Inspect the rubber of the Power Key (a) and Power Key
switch (b).

Action:

1. If dirty – clean them.

2. If the rubber of the power key is damaged – replace the
Power/Side Key Assy.

1290-1679 Rev 3

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Problem Areas: Keys

3. If the power key switch is damaged – replace the Main
FPC Assy.

1.2.4 Camera Key

Check:

Inspect the external area of the Camera Key.

Action:

If dirty – clean it.

Troubleshooting Guide (mech)

Check:

Inspect the BtB connector of Main FPC Assy to Main PBA.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

3. If the FPC of Main FPC Assy is damaged – replace the
Main FPC Assy.

4. Replace Main PBA.

1290-1679 Rev 3

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Problem Areas: Keys

Check:

Inspect the rubber of the Camera Key (a) and Camera Key
switch (b).

Action:

1. If dirty – clean them.

2. If the rubber of the Camera Key is damaged – replace the
Camera Key Assy.

Troubleshooting Guide (mech)

2. If the camera key switch is damaged – replace the Main
FPC Assy.

1290-1679 Rev 3

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Problem Areas

1.3 Touch Screen

1.3.1 Touch Screen malfunction

Check:

Inspect the touch screen of the Display Frame Assy.

Action:

1. If dirty – clean it.

2. If scratched or damaged – replace the Display Frame
Assy.

Troubleshooting Guide (mech)

Check:

Inspect the BtB connector of Touch Panel FPC to LCD FPC.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

3. If the BtB connector of touch panel FPC or FPC is
damaged – replace the Display Frame Assy.

4. If the BtB connector of LCD FPC or FPC is damaged –
replace the Display Frame Assy.

5. Replace Main PBA.

1290-1679 Rev 3

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Problem Areas: Touch Screen

Check:

Inspect the BtB connector of Display FPC to Main FPC
Assy.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

3. If the BtB connector of Display FPC or FPC is damaged –
replace the Display Frame Assy.

Troubleshooting Guide (mech)

3. If the BtB connector of Main FPC Assy or FPC is
damaged – replace the Main FPC Assy.

Check:

Inspect the BtB connector of Main FPC Assy to Main PBA.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

1290-1679 Rev 3

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Problem Areas: Touch Screen

3. If the FPC of Main FPC Assy is damaged – replace the
Main FPC Assy.

4. Replace Main PBA.

Troubleshooting Guide (mech)

1290-1679 Rev 3

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Problem Areas

1.4 Display

1.4.1 Graphics & Illumination

Check:

Check whether the phone vibrates after the on/off key has
been pressed.

Action:

If the activation described above is not detected, refer to
section 1.1 ‘Power’.

Check:

Inspect the BtB connector of LCD FPC to Main FPC Assy.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

Troubleshooting Guide (mech)

3. If the BtB connector of LCD FPC or FPC is damaged –
replace the Display Frame Assy.

3. If the BtB connector of Main FPC Assy or FPC is
damaged – replace the Main FPC Assy.

1290-1679 Rev 3

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Problem Areas: Display

Check:

Inspect the BtB connector of Main FPC Assy to Main PBA.

Action:

1. If not properly connected – disconnect and reconnect it.

2. If dirty or oxidized – clean it.

3. If the FPC of Main FPC Assy is damaged – replace the
Main FPC Assy.

4. Replace Main PBA.

Troubleshooting Guide (mech)

1290-1679 Rev 3

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Problem Areas

1.5 LED/Illumination

1.5.1 LED/Illumination

Check:

Inspect external port of LED on the Display Frame Assy.

Action:

1. If dirty – clean it.

Check:

Inspect the LED on the Main PBA.

Action:

1. If dirty – clean it.

2. Replace Main PBA.

Troubleshooting Guide (mech)

1290-1679 Rev 3

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Problem Areas

1.6 Speaker

1.6.1 Loudspeaker

Check:

Inspect the Loudspeaker’s external port on the Back Cover
Assy.

Action:

1. If clogged – clean it.

Troubleshooting Guide (mech)

2. If damaged – replace the Speaker Net.

Check:

Inspect the Speaker Mesh on the Ant Speaker Bottom
Frame Assy.

Action:

1. If clogged – clean it.

2. If damaged – replace the Speaker Mesh.

1290-1679 Rev 3

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