Sony Xperia E3 TROUBLESHOOTING GUIDE

Troubleshooting Guide

- mechanical -

TM

Xperia

E3 & E3 Dual

D2202, D2203, D2206, D2212, D2243

1291-1032 Rev 2

©

Sony Mobile Communications AB – Company Internal

CONTENTS

Troubleshooting Guide (mech)

1Problem Areas ................................................................................ 4

1.1 Power .................................................................................................... 4

1.1.1Will not power on or will switch off randomly ........................................... 4

1.2 Keys ...................................................................................................... 6

1.2.1Back, Menu, Home and Multitask Keys ..................................................... 6

1.2.2Volume Key .................................................................................................. 6

1.2.3On/Off Key .................................................................................................... 7

1.3 Touch Screen ....................................................................................... 9

1.3.1Touch Screen malfunction .......................................................................... 9

1.4 Display ................................................................................................ 11

1.4.1Graphics & Illumination ............................................................................ 11

1.5 LED/Illumination ................................................................................. 12 

1.5.1LED/Illumination ........................................................................................ 12

1.6 Speaker ............................................................................................... 13

1.6.1Loudspeaker .............................................................................................. 13

1.7 Earphone ............................................................................................ 15

1.7.1Ear Speaker ................................................................................................ 15

1.8 Microphone ......................................................................................... 16

1.8.1Primary Microphone .................................................................................. 16

1.8.2Secondary Microphone ............................................................................. 17

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1.9 Vibrator ............................................................................................... 19

1.9.1Vibrator not generating alerts .................................................................. 19

1.10 Camera ................................................................................................ 20 

1.10.1Main Camera .............................................................................................. 20

1.10.2Video Call Camera defects ........................................................................ 21

1.11 Flash LED ........................................................................................... 22

1.11.1Flash LED not flashing .............................................................................. 22

1.12 Bluetooth and WLAN ......................................................................... 23

1.12.1Bluetooth or WLAN connection failure .................................................... 23

1.13 NFC ..................................................................................................... 24

1.13.1NFC malfunctions ...................................................................................... 24

1.14 GPS ..................................................................................................... 25

1.14.1GPS malfunctions ...................................................................................... 25

1.15 Compass ............................................................................................. 26

1.15.1Compass fails ............................................................................................ 26

1.16 Accelerometer .................................................................................... 26

1.16.1Accelerometer test fails ............................................................................ 26

1.17 Ambient Light Sensor ........................................................................ 27

1.17.1Light Sensor malfunctions ....................................................................... 27

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1.18 Proximity Switch ................................................................................ 28

1.18.1Proximity switch malfunctions ................................................................. 28

1291-1032 Rev 2

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Sony Ericsson Mobile Communications AB – Company Internal

2(40)

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Troubleshooting Guide (mech)

1.19 Pressure Sensor ................................................................................. 29

1.19.1Pressure Sensor test fails ......................................................................... 29

1.20 Water Resistance ............................................................................... 29

1.20.1Water Resistance fails............................................................................... 29

1.21 Real Time Clock ................................................................................. 30

1.21.1Real time clock test fails ........................................................................... 30

1.22 Total call time ..................................................................................... 30

1.22.1Total call time fails .................................................................................... 30

1.23 External ............................................................................................... 31 

1.23.1Memory Card not detected ....................................................................... 31

1.24 Security ............................................................................................... 31 

1.24.1Security fails .............................................................................................. 31

1.25 FM Radio ............................................................................................. 32

1.25.1No/Poor FM Radio reception .................................................................... 32

1.26 Battery Health test ............................................................................. 33

1.26.1Battery Health test fails ............................................................................. 33

1.27 Flip Slider Counter ............................................................................. 33

1.27.1Flip Slider Counter fails ............................................................................ 33

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1.28 Verify Certificates ............................................................................... 33

1.28.1Verify Certificates fails .............................................................................. 33

1.29 IrDA Test ............................................................................................. 33

1.29.1IrDA test fails ............................................................................................. 33

1.30 TV-Out Test ......................................................................................... 34

1.30.1TV-Out test fails ......................................................................................... 34

1.31 Network & Signal ................................................................................ 35

1.31.1No/Poor signal ........................................................................................... 35

1.32 SIM ...................................................................................................... 36

1.32.1SIM not detected ........................................................................................ 36

1.32.2Incorrect UIM or SIM indicated ................................................................. 36

1.33 Charging ............................................................................................. 37

1.33.1Battery will not charge by USB connector .............................................. 37

1.34 HandsFree by Wire ............................................................................. 38

1.34.1Connection to portable Handsfree fails ................................................... 38

1.35 Data Communication ......................................................................... 39

1.35.1Data transfer via System Connector fails ................................................ 39

2Revision History ........................................................................... 40

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Always firstly disconnect the Battery BtB connector to cut off power supply when diassembled.
Always finally connect the Battery BtB connector last before the Battery Cover is reassembled.

1291-1032 Rev 2

©

Sony Ericsson Mobile Communications AB – Company Internal

3(40)

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 and do a
HW master reset.

Follow 1291-1033 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.

1291-1032 Rev 2

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Problem Areas: Power

3. If the BtB connector, Battery FPC or the Battery 2300
mAh is damaged – replace the Battery 2300 mAh.

4. Replace Main PBA.

Troubleshooting Guide (mech)

1291-1032 Rev 2

©

Sony Ericsson Mobile Communications AB – Company Internal

5(40)

Problem Areas

1.2 Keys

1.2.1 Back, Menu, Home and
Multitask Keys

Action:

1. Refer to section 1.3 ‘Touch Screen’.

1.2.2 Volume Key

Check:

Inspect the external area of the volume key.

Action:

If dirty – clean it.

Troubleshooting Guide (mech)

Check:

Inspect the Side Key FPC connector located on Main PBA.

Action:

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

2. If dirty or oxidized – clean it.

3. If damaged – replace the Main PBA.

Check:

Inspect the contact pads of Side Key FPC.

Action:

1. If dirty or oxidized – clean it.

2. If the Side Key FPC is damaged – replace the Side Key
FPC.

3. Replace Main PBA.

1291-1032 Rev 2

©

Sony Ericsson Mobile Communications AB – Company Internal

6(40)

Problem Areas: Keys

Check:

Inspect the area and position of the Side Key FPC (Volume)
(a) and volume key domes (b).

Action:

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

2. If dirty or oxidized – clean it.

3. If the Side Key FPC is damaged – replace the Side Key
FPC.

4. If the rubber of the volume key is damaged – replace
the Key Power/Vol.

Troubleshooting Guide (mech)

5. Replace Main PBA.

1.2.3 On/Off Key

Check:

Inspect the external area of the On/Off Key.

Action:

If dirty – clean it.

1291-1032 Rev 2

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7(40)

Problem Areas: Keys

Check:

Inspect the contact pads of Side Key FPC to Main PBA.

Action:

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

2. If dirty or oxidized – clean it.

3. If the Side Key FPC is damaged – replace the Side Key
FPC.

4. Replace Main PBA.

Check:

Inspect the area and position of the Side Key FPC (Power
On/Off area) (a) and On/Off Key dome (b).

Action:

1. If dirty – clean them.

2. If damaged replace Side Key FPC.

Troubleshooting Guide (mech)

3. If the On/Off Key is damaged – replace the Key
Power/Vol.

4. Replace Main PBA.

1291-1032 Rev 2

©

Sony Ericsson Mobile Communications AB – Company Internal

8(40)

Problem Areas

1.3 Touch Screen

1.3.1 Touch Screen malfunction

Check:

Inspect the touch screen of the Display.

Action:

1. If dirty – clean it.

Troubleshooting Guide (mech)

2. If scratched or damaged – replace the Front Cover Assy.

Check:

Inspect the BtB connector of Touch Panel to Main PBA.

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 or FPC is damaged –
replace the Front Cover Assy.

4. Replace Main PBA.

1291-1032 Rev 2

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Sony Ericsson Mobile Communications AB – Company Internal

9(40)

Problem Areas: Touch Screen

Check:

Inspect the BtB connector of LCD FPC to Main PBA and the
BtB connector of Main PBA.

Action:

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

2. If dirty or oxidized – clean it.

3. Replace Front Cover Assy.

Troubleshooting Guide (mech)

4. Replace Main PBA.

1291-1032 Rev 2

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Sony Ericsson Mobile Communications AB – Company Internal

10(40)

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 contact pads of Side Key FPC to Main PBA.

Action:

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

2. If dirty or oxidized – clean it.

Troubleshooting Guide (mech)

3. If the Side Key FPC is damaged – replace the Side Key
FPC.

Check:

Replace the Main PBA with a known working one and test
the Display.

Action:

1. If the display is still not working – Replace the Front
Cover Assy.

2. Replace Main PBA.

1291-1032 Rev 2

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Sony Ericsson Mobile Communications AB – Company Internal

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Problem Areas

1.5 LED/Illumination

1.5.1 LED/Illumination

Check:

Inspect external port of LED on the Front of phone.

Action:

1. If dirty – clean it.

Check:

Inspect the LED located on Main PBA.

Action:

1. If dirty or oxidized – clean it.

Troubleshooting Guide (mech)

3. Replace Main PBA.

1291-1032 Rev 2

©

Sony Ericsson Mobile Communications AB – Company Internal

12(40)