Troubleshooting Guide - Blog A
Contents
1. make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 24 External Memory 1 24 1 External Memory test failed Action N A No External Memory in the phone 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 43 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 25 Security 1 25 1 Security failed Action Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 44 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 26 FM Radio 1 26 1 No Poor FM Radio reception Check Inspect the audio jack Action If dirty or oxidized clean the connector Check Inspect the contact pins on the Audio Jack and the contact pads on the FPC Jack Assy Action 1 If dirty or oxidized clean the pads and pins 2 If the pins are damaged replace the Audio Jack Check Inspect the BtB connector of the FPC Jack Assy to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 45 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas FM Radio Check Inspect the FPC Jack Assy Action 1 If the FPC Jack Assy or its BtB connector2. Check Inspect the Main FPC Action 1 If the FPC Main Assy or tts BtB connector is damaged replace the Main FPC 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 21 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Microphone 1 8 2 Secondary Microphone Check Inspect the Microphone s external port on the Cover Rear Assy Action 1 If clogged clean the port 2 If the Cover Rear Assy is damaged replace the Cover Rear Assy Check Inspect the Cushion of Speaker on the Rear Frame Assy Action If the Cushion of Speaker is damaged replace it 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 22 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Secondary Microphone Check Inspect the Microphone s mesh port on the Rear Frame Assy Action 1 If clogged clean the port 2 If the Microphone s mesh port is damaged replace the Rear Frame Assy Check Inspect the BtB connector of PBA NFC to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the PBA NFC Action 1 If the PBA NFC or its BtB connector is damaged replace the PBA NFC 2 Replace board 1257 2931 Rev 6 Sony Mobil
3. port on the Cover Rear Sub Assembly Action 1 If clogged clean the port 2 If the Cover Bottom is damaged replace the Cover Bottom Check Inspect the Microphone s mesh on the Main Antenna Action 1 If clogged clean the Microphone mesh 2 If the mesh is damaged replace the Main Antenna 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 19 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Microphone Check Inspect the Mic on the PBA Bottom Action If the Mic is damaged replace the PBA Bottom Check Inspect five pins on the PBA Bottom and five pins on the FPC Main Assy and the ten pads on the Cover Transparent Assy Action If dirty clean them Check Inspect the PBA Bottom five pins Action lf the PBA bottom five pins are damaged replace the PBA bottom 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 20 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Microphone Check Inspect the Cover Transparent Assy Action If the Cover Transparent Assy pads are damaged replace the Cover Transparent Assy Check Check the BtB connector of the FPC Main Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector
4. 24 1 External Memory test failed ccccsccesseeesseesseeesseeneeenseoeseeeaseonseoeeesensens 43 Ed EE 44 E WE UG WANG WE 44 1 20 FM RIGO WEE 45 1 26 1 No Poor FM Radio reception cccccccenseceeseceasecnseeenseeeaeesnseseaseseasenes 45 Jet Battery Heath EE EEEe 47 1 27 1 Battery Healtl test falls nisinsin iannau 47 128 MOMI LOSU siriana a a 48 1281 HDMitesSt fallS anana eee 48 1 29 NetWork Ce IT E 49 129 1 INO POOF SIGNA E 49 PO SIM EE EE ENNEN 52 T301 SIMnNnotd tecled tee EE 52 1 30 2 Ipmeorreetihkmceategd 22 52 AST CHARGING EE 53 1 31 1 Battery will NOt Chare ccccccceeeceeeeeseeeseeessensesseeseonseoneeonssnseeesoeeess 53 1 32 HandsFree AE 54 1 32 1 Connection to Portable HandsFree failS ccccececececeeeenenenenenenenenenenes 54 1 33 Data Communication 0 cc0cececcecncecsceccncecscencececenescsceneecsceneneeeeneneeess 56 1 33 1 Data transfer via System Connector fallS cccessceseeeeeseeeeeeneeseneees 56 2 REVISION DSP 57 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 3 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical 1 Problem Areas 1 1 Power 1 1 1 Will not power on or will switch off randomly Check Check whether the phone vibrates and the Keyboard illuminates after the Key On Off is depressed Action If activation of the Vibrator is detected refer to section 1 4 Display If NO activati
5. Camera veieicicciscsekteaecedaicaedndciehededadesnseceueeednicdvandeceisecdsectenedsdadece 27 MFAS MEER DEE 28 1 11 1 Flash LED not flashing siasii aana 28 1 12 Bluetooth and W LAN malfunctions sannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 29 1 12 1 Bluetooth and W LAN malfunctions 0 cccccceeeeeeecececeeeeeneeeececeeeeenees 29 CONTO a A aS 30 1131 NEGRI eege ee Ee 30 EN GPS ona a a a 31 NI SxWWc HEI Ulei Le lu CC 31 115 ele ET 32 1 151 COMPASS falls eege E 32 ski E gell E EE 33 1 16 1 Accelerometer test fails ee ee 33 NEAT CV de En E 34 a ken WE Gyroscope test UI 34 1 18 Ambient Light SONS TEE 35 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal SONY make believe Trouble Shooting Guide Repair Instruction Mechanical 1162 JOERGER HOER 35 1 19 Ge E du EC e DEE 37 1 19 1 Proximity switch malfunctions cccceeeceeeeeeeseeeeeeeeeeeeessenssenseeneeeesoeeees 37 1 20 Pressure Gensor ENNEN ENER ENNEN ENNEN ENNEN ENNEN ENNEN EEN EN ENN 39 1 20 1 Pressure Sensor test failed ccccecscscsceccncececscscecencncececseeeeneneacessaeeeneneas 39 RSC AREND o Le 1 WEEN 40 1 21 1 Water Proof test taled ee ENKEN ENNEN EN EN ENER ENNEN ENNEN EN EEN ENNEN ENNEN EK EN 40 EH UME CIOCK ee 41 1 22 1 Real time clock test failed cccccecescececcecencecencecenceceeceneecenesaenesnesesneseeass 41 123 erter H Eege ee EE EE EE 42 CC Eu We tel CECR TIME TANG EE 42 124 EXTERNAL MOCMONY ee ed 43 1
6. Internal 7 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Keys Action If the Key On Off is damaged replace it Check Inspect the BtB connector of the FPC Jack Assy to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the FPC Jack Assy Action 1 If the FPC Jack Assy or its BtB connector is damaged replace the FPC Jack Assy 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 8 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 3 Touch Screen 1 3 1 Touch Screen malfunction Check Inspect the touch screen of the Cover Front Action 1 If dirty clean it 2 If the touch screen is damaged replace the Cover Front Assy Check Inspect the BtB connector of the Cover Front Assy to the Main FPC Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Cover Front Assy Action If the Cover Front Assy or its BtB connector is damaged replace the Cover Front Assy 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 9 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Pro
7. SONY make believe Troubleshooting Guide mechanical Xperia S LT26i LT26ii SO 02D 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal SONY make believe Trouble Shooting Guide Repair Instruction Mechanical CONTENTS 1 Problem Areas ek EN NENNEN ENN ENNEN EN ENN ENNEN EN ENN ENNEN EN EN 4 Wel e UE 4 1 1 1 Will not power on or will switch off randomlly ccsseeeeeeeeeeeeeeeenees 4 L2 Mee EE 5 1 2 1 Menu Home and Back KeyYS ccccssccesseeeseeeseeeseeenseenseeeseeenseonseeeseseneennees 5 122 ROY CAMO Egeter 5 E Key VolUME E 6 E KEVOMOT EE 7 Nes TOUN SCHOEN HEEN 9 1 3 1 Touch Screen Tat 9 MAE DIS DAY opri a 11 1 4 1 Graphics amp HOESER eege eege eege eEEEE 11 1 5 EEDA AU Le Un EE 13 1 5 1 LEDilummaton ek ENKEN EN EN ENER ENNEN ENNEN EN ENER ENNEN ENNEN EN EEN ENNEN ENNEN EK EN 13 15 2 KEY lu e E 14 1 6 Speake EE 16 LOI HOUGSDEAK EE 16 Ms ALD lui EE 18 Well Ge Ve Tu iescevecepecevescwanevegewescudnctsseucnenensnecswenswane doce veceweseusseteaendscueseusseustevecenes 18 EO MIC OD NO ING cassettes es cect can wena E 19 18 1 Tei gef Le sicsescncuccescncteuesswesctenesecedenssaccceuenancusneussssekewesscusewessteleveuevetesecuenas 19 t32 Secondary le de e ue LE 22 MES VID ALOI EE 24 1 9 1 Vibrator not generating alerts ccccceeeceeeeeeeeeeseeeeeeesenseonseonseeesseesoeeees 24 Ba ug e ui cl WEE 26 1101 Cam ra e E E d EE 26 1 10 2 Secondary
8. Shooting Guide Repair Instruction Mechanical Problem Areas 4 If the pins on the FPC Main Assy are damaged replace the Main FPC Check Inspect the connector on the FPC Main Assy to RF Cable Action 1 If not properly connected to the Antenna disconnect and reconnect tt 2 If damaged replace the Main FPC Check Inspect the connector RF Cable to the Main PBA Action 1 If not properly connected to the Main PBA disconnect and reconnect it 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 50 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Network amp Signal 2 If damaged replace the RF Cable 3 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 51 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 30 SIM 1 30 1 SIM not detected Check the SIM holder Check Inspect the BtB connector of PBA NFC to the main PBA Action 1 If not properly connected disconnect and reconnect Z I dirty or oxidized clean both sides of the BtB connector Check Inspect the PBA NFC Action 1 If the SIM connector on the PBA NFC or its BtB connector is damaged replace the PBA NFC 2 Replace board 1 30 2 Incorrect SIM indicated Check Check whether the phone is locked to a particular operator and whether the corre
9. blem Areas Touch Screen Check Inspect the BtB connector of the FPC Main Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Main FPC Action 1 If the FPC Main Assy or its BtB connector is damaged replace the Main FPC 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 10 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 4 Display 1 4 1 Graphics amp Illumination Check Check whether the phone vibrates after the Key On Off has been pressed Action lf the activation described above is not detected refer to section 1 1 Power Check Inspect the ZIF connector of the Cover Front Assy Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the BtB connector of the Cover Front Assy to the Main FPC Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Cover Front Assy Action If the Cover Front Assy or its BtB connector is damaged replace the Cover Front Assy 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 11 57 SONY make believe Tro
10. ct operator SIM is being used Action 1 Use a proper operator SIM or test SIM 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 52 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 31 Charging 1 31 1 Battery will not charge Check Inspect the contact pads of the Battery Action 1 If dirty or oxidized clean the pads 2 If damaged replace the Battery Check Inspect the Battery Contact pins on the main PBA Action 1 If dirty or oxidized clean the contact pins 2 If adhesive is detected on the contact pins use an eraser to gently rub off the adhesive Check Inspect the USB connector Action 1 If dirty or oxidized clean the connector 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 53 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 32 HandsFree by Wire 1 32 1 Connection to Portable HandsFree fails Check Inspect the audio jack Action If dirty or oxidized clean the connector Check Inspect the contact pins on the Audio Jack and the contact pads on the FPC Jack Assy Action 1 If dirty or oxidized clean the pads and pins 2 If the pins are damaged replace the Audio Jack Check Inspect the BtB connector of the FPC Jack Assy to the main PBA Action 1 If n
11. e Communications AB Company Internal 23 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Vibrator 1 9 Vibrator 1 9 1 Vibrator not generating alerts Check Inspect the vibrator and five pins on the PBA Bottom Action lf the vibrator and five pins are damaged replace the PBA Bottom Check Inspect the Carrier Vibrator Action 1 If the Carrier Vibrator is not properly mounted remounted it 2 If the Carrier Vibrator is damaged replace it Check Inspect the FPC Main Assy five pins and the ten pads on the Cover Transparent Assy Action lf dirty clean them 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 24 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Vibrator Check Inspect the Cover Transparent Assy Action If the Cover Transparent Assy pads are damaged replace the Cover Transparent Assy Check Inspect the FPC Main Assy pins Action If the FPC Main Assy pins are damaged replace the Main FPC Check Check the BtB connector of the FPC Main Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Main FPC Action 1 If the FPC Main Assy or tts BtB connector is damaged replace the Main FPC 2 Replac
12. e Communications AB Company Internal 30 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 14 GPS 1 14 1 GPS malfunctions Check Inspect the Antenna GPS on the Rear Frame Assy Check Inspect the GPS antenna contact pads on Ant GPS and the contact pins on the Main PBA Action 1 If dirty or oxidized clean the pads and pins 2 If the pads are damaged replace the Ant GPS 3 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 31 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 15 Compass 1 15 1 Compass fails Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 32 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 16 Accelerometer 1 16 1 Accelerometer test fails Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 33 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 17 Gyroscope 1 17 1 Gyroscope test fails Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 34 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 18 Ambient Light Sensor 1 18 1 Light Sensor malfunctions Check Inspect the Light Sensor w
13. e board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 25 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 10 Camera 1 10 1 Camera defects Check Inspect the Camera Window on the Rear Frame Assy Action 1 If dirty clean the window 2 If scratched or damaged replace the Rear Frame Assy Check Inspect the BtB connector of the FICTIVE Camera 13 1 M to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Action 1 If damaged replace the FICTIVE Camera 13 1 M 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 26 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 10 2 Secondary Camera Check Inspect the Camera Window on Cover Front Assy Action 1 If dirty or clogged clean the window Action 2 If scratched or damaged replace the Cover Front Assy 3 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 27 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 11 Flash LED 1 11 1 Flash LED not flashing Check Inspect the flash lens window on the Rear Frame Assy Action 1 If scratched or damaged replace the Rear Frame As
14. e the FPC Jack Assy 2 Replace board 1 5 2 Key Illumination Check Inspect the Illumination window on the Cover Front Assy Action 1 If dirty clean it 2 If the window is damaged replace the Cover Front Assy Check Inspect the LED window on Cover Transparent Assy Action 1 If dirty clean it 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 14 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Illumination 2 If the window is damaged replace the Cover Transparent Assy Check Inspect the BtB connector of the FPC Main Assy to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Illumination LED on the Main FPC Action 1 If dirty clean it Check Inspect the Main FPC Action 1 If the FPC Main Assy or tts BtB connector is damaged replace the Main FPC 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 15 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 6 Speaker 1 6 1 Loudspeaker Check Inspect the Loudspeaker s external port on the Cover Rear Assy Action 1 If clogged clean the speaker port or replace the Cover Rear Assy 2 If the Cover Rear Assy is damaged re
15. indow on the Cover Front Assy Action 1 If clogged clean it 2 If scratched or damaged replace the Cover Front Assy Check Inspect the BtB connector of the FPC Jack Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both side of the BtB connector Check Inspect the Light Sensor on the FPC Jack Assy 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 35 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Sensors Check Inspect the FPC Jack Assy Action 1 If the FPC Jack Assy or its BtB connector is damaged replace the FPC Jack Assy 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 36 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 19 Proximity switch 1 19 1 Proximity switch malfunctions Check Inspect the Proximity switch window on the Cover Front Assy Action 1 If clogged clean it 2 If scratched or damaged replace the Cover Front Assy Check Inspect the BtB connector of the FPC Jack Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both side of the BtB connector Check Inspect the Proximity switch on the FPC Jack Assy 1257 2931 Rev 6 Son
16. is damaged replace the FPC Jack Assy 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 46 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 27 Battery Health test 1 27 1 Battery Health test fails Check Inspect the Battery Action lf the Battery is damaged or in bad health status replace it 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 47 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 28 HDMI Test 1 28 1 HDMI test fails Check Inspect the HDMI connector Action Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 48 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 29 Network amp Signal 1 29 1 No Poor signal Check Inspect the Main Antenna Check Inspect the Main Antenna contact pads and contact pins and pads on the Cover Transparent Assy and contact pins on the main FPC Action 1 If dirty or oxidized clean the pads and pins 2 If the pads on Main Antenna are damaged replace the Main Antenna 3 If the pins and pads on the Cover Transparent Assy are damaged replace the Cover Transparent Assy 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 49 57 SONY make believe Trouble
17. on of the Vibrator is detected check that the battery is charging when connected to a charger Follow test instruction Charging via USB Diagnostic Battery Charging status Check Inspect the contact pads on the Battery Action 1 If dirty or oxidized clean the pads 2 If damaged replace the Battery Check Inspect the Battery Contact pins on the main PBA Action 1 If dirty or oxidized clean the contact pins 2 If adhesive is detected on the contact pins use an eraser to gently rub off the adhesive 3 If damaged replace board 4 Check current draw in off mode by using Dummy Battery max 1 mA 5 Replace Board Check Inspect the Key On Off Action 1 Refer to section 1 2 4 Key On Off 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 4 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 2 Keys 1 2 1 Menu Home and Back Keys Check Inspect the menu home and back keys on the Cover Front Action 1 Refer to the section 1 3 Touch Screen 2 Replace board 1 2 2 Key Camera Check Inspect the Key Camera on the Cover Front Assy Action If the Key Camera is damaged replace it Check Inspect the Key Camera push switch on the Main FPC Action If a or b is dirty or clogged clean it 1257 2931 Rev 6 Sony Mobile Communications AB Company Inte
18. ot properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 54 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas HandsFree By Wire Check Inspect the FPC Jack Assy Action 1 If the FPC Jack Assy or its BtB connector is damaged replace the FPC Jack Assy 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 55 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 33 Data Communication 1 33 1 Data transfer via System Connector fails Check Inspect the USB connector Action 1 If dirty or oxidized clean the connector 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 56 57 SONY make believe 2 Revision Histor Rev Date Changes Comments 2012 Mar 2 Initial release 2012 Mar 6 Template update Trouble Shooting Guide Repair Instruction Mechanical e 2012 Sep 19 Addnewpan Ee OOOO 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 57 57
19. place the Cover Rear Assy Check Inspect the Loudspeaker s mesh on the Rear Frame Assy Action 1 If clogged clean the speaker mesh 2 If the mesh is damaged replace the Rear Frame Assy 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 16 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Speaker Check Inspect the Loudspeaker s pins on the Rear Frame Assy and the pads on the Main PBA Action 1 If dirty clean them 2 If the Loudspeaker is damaged replace the Loudspeaker 3 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 17 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 7 Earphone 1 7 1 Earphone Check Inspect the Ear Speaker s external port Action 1 If clogged clean it 2 If the Net Receiver on the Cover Front Assy is damaged replace the Cover Front Assy Check Inspect the Ear Speaker pins and the pads on the Main PBA Action 1 If dirty clean them 2 If the Ear Speaker is damaged replace the Ear Speaker 3 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 18 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 8 Microphone 1 8 1 Microphone Check Inspect the Microphone s external
20. rnal 5 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Keys Check Check the BtB connector of the FPC Main Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the FPC Main Assy Action 1 If the FPC Main Assy or tts BtB connector is damaged replace the Main FPC 2 Replace board 1 2 3 Key Volume Check Inspect the Key Volume on the Cover Front Assy Action If the Key Volume is damaged replace it 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 6 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Keys Check Inspect the key volume push switch on the FPC Main Assy Action If a or b or c is dirty or clogged clean it Check Check the BtB connector of the FPC Main Assy to the Main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the FPC Main Assy Action 1 If the FPC Main Assy or tts BtB connector is damaged replace the FPC Main Assy 2 Replace board 1 2 4 Key On Off Check Inspect the Key On Off on Cover Front Assy 1257 2931 Rev 6 Sony Mobile Communications AB Company
21. sy 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 28 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 12 Bluetooth and W LAN malfunctions 1 12 1 Bluetooth and W LAN malfunctions Check Inspect the WLAN and Bluetooth antenna on the Rear Frame Assy Check Inspect the WLAN and Bluetooth antenna contact pads on the Ant GPS and the contact pins on the Main PBA Action 1 If dirty or oxidized clean the pads and pins 2 If the pads are damaged replace the Ant GPS 3 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 29 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 13 NFC 1 13 1 NFC malfunctions Check Inspect the BtB connector of PBA NFC to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the NFC contact pins on the PBA NFC and the contact pads on the NFC Antenna Action If dirty or oxidized clean the pads and pins Check Inspect the NFC Antenna Action If the NFC Antenna is damaged replace the NFC Antenna Check Inspect the PBA NFC Action 1 If the PBA NFC or its BtB connector is damaged replace the PBA NFC 2 Replace board 1257 2931 Rev 6 Sony Mobil
22. uble Shooting Guide Repair Instruction Mechanical Problem Areas Display Check Inspect the BtB connector of the FPC Main Assy to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Main FPC Action 1 If the FPC Main Assy or tts BtB connector is damaged replace the Main FPC 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 12 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 5 LED IIlumination 1 5 1 LED ilumination Check Inspect the window of LED red green blue on the Cover Front Assy Action 1 If dirty clean it 2 If the window is damaged replace the Cover Front Assy Check Inspect the BtB connector of the FPC Jack Assy to the main PBA Action 1 If not properly connected disconnect and reconnect 2 If dirty or oxidized clean both sides of the BtB connector Check Inspect the Illumination LED on the FPC Jack Assy Action lf dirty clean it 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 13 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Illumination Check Inspect the FPC Jack Assy Action 1 If the FPC Jack Assy or its BtB connector is damaged replac
23. y Mobile Communications AB Company Internal 37 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas Check Inspect the FPC Jack Assy Action 1 If the FPC Jack Assy or its BtB connector is damaged replace the FPC Jack Assy 2 Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 38 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 20 Pressure Sensor 1 20 1 Pressure Sensor test failed Action N A No Pressure Sensor in the phone 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 39 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 21 Water Proof 1 21 1 Water Proof test failed Action N A No Water Proof in the phone 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 40 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 22 Real time clock 1 22 1 Real time clock test failed Action Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 41 57 SONY make believe Trouble Shooting Guide Repair Instruction Mechanical Problem Areas 1 23 Total call time 1 23 1 Total call time failed Action Replace board 1257 2931 Rev 6 Sony Mobile Communications AB Company Internal 42 57 SONY
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