Micromax Selfie 3 E460 Service Manual Download Page 8 | Manualshive

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8.

Keys

SN. Possible Cause

Validation steps

Action

1

Key is not response

Key is fail

Change Key

Re-solder Key FPC

（

NA

）

2

The feeling of pressing
key is bad

Key is fail

Change Key

Some dust with dome

Clean it

Key is not assembled well

Re-assemble it

Power -Key

Power- Key
Connector

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Summary of Contents for Selfie 3 E460

Page 1: ...cy 1 4G OCTA Network Mode 850MHz 900MHz 1800MHz 1900MHz WCDMA Band B1 B2 B5 B8 4G Band B1 B3 B7 B8 B20 B40 B38 41 B28A B5 Rom 16G RAM 3G Internal SD Card memory 8 79G Expandable Memory 128G Factory mo...

Page 2: ...itted after servicing and alignment V Ensure all cables and wires are repositioned correctly if Handset disassembled VI Electrostatic discharge can easily damage the sensitive components of electronic...

Page 3: ...b Charge the battery or replace for a new battery 2 Power Key Power key FPC fail a Clean power key FPC b Replace for a new FPC 3 SW failure Upgrading with latest software Upgrading 4 Battery Connector...

Page 4: ...D issue Clean LCD connector Re assemble LCD Replace it LCD issue Re solder LCD connector change a new LCD NA PCBA issue Clean LCD connector Re assemble to PCBA 2 Colored screen LCD issue Re assemble L...

Page 5: ...ge TP NA PCBA issue a Clean TP connector Re assemble TP b Change PCBA 4 Fingerprint SN Possible Cause Validation steps Action 1 Finger print Failure SW Issue Flash the handset with latest SW Finger pr...

Page 6: ...th latest SW Sensor holder is not assembled well Clean it and Re assemble the sensor holder PCBA issue Change PCBA Front housing assay fail Front housing issue Change for a new front housing assay Pro...

Page 7: ...on steps Action 1 Gyroscope fail SW Issue Flash the handset with latest SW PCBA issue Change PCBA 7 Hall SN Possible Cause Validation steps Action 1 Hall fail SW Issue Flash the handset with latest SW...

Page 8: ...teps Action 1 Key is not response Key is fail Change Key Re solder Key FPC NA 2 The feeling of pressing key is bad Key is fail Change Key Some dust with dome Clean it Key is not assembled well Re asse...

Page 9: ...sue Charging Change it Main FPC issue Re assembly or Change it SUB PCBA issue Change SUB PCBA USB socket Clean the socket 2 Have charging icon but not charged SW Issue Flash the handset with latest SW...

Page 10: ...dation steps Action 1 Cannot connect to PC USB cable is fail Change USB cable SUB PCBA fail Change SUB PCBA Main FPC issue Re assembly or Change it Systems driver issue Update systems driver PCBA fail...

Page 11: ...amera or Change it PCBA fail Clean camera connector PCBA fail Re solder camera NA PCBA fail Change PCBA 2 Cannot turn on front camera SW issue Flash the handset with latest SW Camera issue Clean camer...

Page 12: ...ash the handset with latest SW Camera issue Clean camera connector Re assembly Camera issue Re assemble camera Change Camera PCBA fail Change PCBA 13 Wi Fi BT SN Possible Cause Validation steps Action...

Page 13: ...ng Set turn off as default Reset to turn on wifi SW issue Flash the handset with latest SW GPS antenna Re assemble rear housing or change rear housing PCBA issue Clean PCBA Antenna Slot PCBA issue Cha...

Page 14: ...on steps Action 1 SIM not working Set turn off as default Reset to turn on SIM SW issue Flash the handset with latest SW SIM slot issue Clean sim slot or adjust the pin SIM card issue Change sim card...

Page 15: ...ck up and copy RF parameter RF antenna issue rear housing Re assemble or Change rear housing RF antenna issue SUB PCBA change SUB PCBA Some dust with RF Slot Clean it RF Coaxial line issue Re assemble...

Page 16: ...A issue Change PCBA 18 Vibrator SN Possible Cause Validation steps Action 1 Vibrating is not properly Vibrator assemble issue Re assemble it SW issue Flash the handset with latest SW Main FPC issue Re...

Page 17: ...g from earphone SW issue Flash the handset with latest SW Earphone is fail Change Earphone earphone connector issue Clean earphone connector re connect PCBA fail Change PCBA Earphone Earphone connecto...

Page 18: ...n FPC connector reassemble PCBA issue Change PCBA 2 Volume low MIC dust proof net issue Clean dust proof net Change it Volume is set too low by person Reset the value of volume SW issue Flash the hand...

Page 19: ...r change SUB PCBA Main FPC issue Re assemble Main FPC or change it PCBA issue Clean Main FPC connector change PCBA 3 Low volume Assemble issue Assemble again Volume is set too low by person Reset the...

Page 20: ...3 Low Battery Battery issue Charge change it PCBA issue Clean battery connector re assemble it PCBA issue Change PCBA Thanks Battery Battery connector...

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